Deep20Bench
v1.1Current

Benchmark edition

Edition 1.1 settings

10 subjects3 rounds per subject40 question limit
Question answersYesRather yesRather noNoUnknown
What changed
Source
Menu
Round

Round 2

Round 2

Identified Bike pump in 27 counted questions.

Back to all Bike pump rounds
Questions
27
Outcome
Solved
Format errors
No errors
Duration
4m 37s
Round cost
$0.0957 All 28 turns

Transcript

Questions and answers.

Turns are shown in the order they happened. Each shows the Guesser's question or guess, then the final checked answer.

Exact Guesser setupSystem message and BEGIN event

The Guesser received these messages at the start of the round. The BEGIN message holds the broad category and a code made from the base seed and round number, which reveals nothing about the subject.

System message
You are the Guesser in a Twenty Questions benchmark. Identify the hidden subject using as few
counted turns as possible. BEGIN provides only its broad category. The variation_token has no
clues; do not interpret, mention, or repeat it.

The category in BEGIN has a broad meaning:
- person: a real human, living or historical.
- fictional_character: an invented character from a story, book, comic, film, television,
  game, or another fictional work.
- mythological_figure: a figure from mythology or traditional legend.
- video_game_character: a character known from video games.
- thing: a broad category covering natural and human-made entities, living or nonliving,
  whole entities or parts of them. Possibilities include everyday objects, tools, machines,
  materials, food, animals, plants, body parts, natural structures, geographical features,
  celestial bodies, natural phenomena, and concepts. These possibilities are not exhaustive.
  The target may be a general kind or one particular instance.

Use questions to narrow the supplied category. These definitions are not a list of targets.

Use ASK for a factual question that distinguishes candidates. Never use ASK to confirm a
specific identity. Use GUESS with a name and short identifying description to name a candidate.

ASK has five possible replies:
- YES or NO: the evidence establishes that answer to the exact question.
- RATHER_YES or RATHER_NO: evidence leans that way, but is not strong enough for a firm answer.
  Treat this as a clue; keep candidates fitting the opposite answer possible.
- UNKNOWN: no reliable direction. It supports neither answer.

Ask clear questions about verifiable properties. "Can", "sometimes", "usually", "always", and
"mainly" ask different things. Do not assume that one property proves another or rules out alternatives.
Qualified replies express uncertainty about your question, not how often a property applies.
Before narrowing heavily, check your key assumption with a different property. After rejected
guesses, reconsider earlier assumptions as well as candidates. Answers can be mistaken; check
another property when stuck. Do not ignore an answer merely because it conflicts with a
preferred candidate.

Each ASK, rejected GUESS, or format error before the limit costs one turn. A correct GUESS costs
none. After 40 counted turns, make one final GUESS; ASK is then forbidden. Identity
validation uses only YES, NO, or UNKNOWN. UNKNOWN on GUESS ends the game without success.

FORMAT_ERROR means your output broke the contract, was not checked for correctness, and cost
one turn. Retry using its displayed formats if a turn remains. Return only the required JSON
object with exactly one result action. No explanations, reasoning, or extra fields.
BEGIN event
{"category":"thing","event":"BEGIN","variation_token":"BKXG3AZI"}

Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.

6 of 27 answers in this round reuse an earlier, fully checked answer with its original evidence. No new search or check ran for those turns.

Q1
1 · Guesser asks

Is it a living organism?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a living organism?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

bicycle pump: a small pump that fills bicycle tires with air; a pump is a mechanical device that moves fluid or gas by pressure or suction.

Open vocabulary.com
2 · Answer check returns No
Q2
1 · Guesser asks

Is it primarily a human-made physical object?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily a human-made physical object?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

A bike pump is a device designed to inflate bicycle tires by compressing and transferring air into an inner tube or tubeless setup through a valve... Bike pumps are typically made of steel, aluminum, plastic, rubber, brass, composite... Bike pumps are made through several steps including design, material selection, machining, molding, assembly, sealing, calibration, quality control, and packaging.

Open rinascltabike.com
Source 03

Source summary (model-reported)

A bicycle pump is a type of positive-displacement air pump for bicycles. The page describes bicycle-pump types including mini pumps, floor pumps, and foot pumps, with pumps carried or mounted for bicycle use.

Open en.wikipedia.org
2 · Answer check returns Yes
Q3
1 · Guesser asks

Is it typically small enough for one person to carry?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it typically small enough for one person to carry?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01
Small enough in some cases to place in a jersey pocket or easily attached to your bike’s frame, mini pumps are the go-anywhere ... method of emergency inflation. ... a floor pump is not the most portable of devices.
Open thebicyclechain.com
Source 02

Source summary (model-reported)

The Digital Travel Floor Drive is described as a travel-ready bicycle floor pump designed for portability. Its listed weight is 792 g and its dimensions are 85 mm × 100 mm × 515 mm.

Open ride.lezyne.com
2 · Answer check returns Yes
Q4
1 · Guesser asks

Does it require electricity to perform its main function?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it require electricity to perform its main function?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

In its most basic form, a bicycle pump functions via a hand-operated piston. ... Some, such as the electric pumps, use an automated pumping mechanism.

Open en.wikipedia.org
2 · Answer check returns No
Q5
1 · Guesser asks

Is it primarily used as a tool to perform a task?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used as a tool to perform a task?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns Yes
Q6
1 · Guesser asks

Is it primarily used for cutting or piercing materials?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used for cutting or piercing materials?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

The source describes a bicycle pump as an air pump specifically designed for inflating bicycle tires and explains that the pump displaces air into the tire.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The product is described as a bicycle frame pump for inflating bike tires, with features including inflation up to 120 PSI and compatibility with Presta and Schrader valves.

Open academy.com
Source 03

Source summary (model-reported)

The patent describes an inflator head incorporating a piercing member for use with a compressed gas cartridge, while stating that the bicycle pump itself is used for manually inflating a tire.

Open image-ppubs.uspto.gov
2 · Answer check returns No
Q7
1 · Guesser asks

Is it commonly used in preparing or eating food?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it commonly used in preparing or eating food?"}}
Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

A bicycle pump is a type of positive-displacement air pump specifically designed for inflating bicycle tires. It has a connection or adapter for use with one or both of the two most common types of valves used on bicycles.

Open en.wikipedia.org
2 · Answer check returns No
Q8
1 · Guesser asks

Is it primarily used in construction, repair, or maintenance?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used in construction, repair, or maintenance?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

The source defines a bicycle pump as an air pump specifically designed for inflating bicycle tires and discusses its use to refill bicycle tires with air when pressure decreases.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The source states that bike pumps are used for inflating a tire, including re-inflating tires after a ride, and describes carrying a hand pump for repairing a bike during a ride.

Open decathlon.com
Source 03

Source summary (model-reported)

The source presents inflating bicycle tires to their recommended pressure as a bike-maintenance activity and notes that a pump is used when repairing a flat.

Open schwinnbikes.com
2 · Answer check returns Yes
Q9
1 · Guesser asks

Is its primary purpose to drive or remove fasteners?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose to drive or remove fasteners?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

The patent describes bicycle pumps as air pumps for inflating bicycle tires and explains that the pump nozzle is placed on the bicycle tire valve to inflate the tire with air.

Open image-ppubs.uspto.gov
2 · Answer check returns No
Q10
1 · Guesser asks

Is its primary purpose to measure or mark something?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose to measure or mark something?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

Bike pumps are essential inflation devices designed to maintain proper air pressure in bicycle tires. A bike pump is a device designed to inflate bicycle tires by compressing and transferring air into an inner tube or tubeless setup through a valve.

Open rinascltabike.com
2 · Answer check returns No
Q11
1 · Guesser asks

Is it used primarily to grip or hold objects?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used primarily to grip or hold objects?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

A bicycle pump is a type of positive-displacement air pump specifically designed for inflating bicycle tires. During the down-stroke, the piston displaces air from the pump into the bicycle tire.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The pump is mainly used for daily tire inflation, tire pressure calibration and emergency inflation. Instructions say to hold the handle and push and pull it to start inflation.

Open manuals.plus
Source 03

Source summary (model-reported)

The source describes floor pumps as a way to pump up tires and explains that pump heads lock onto the valve during inflation, while handles provide comfort and support during pumping.

Open wheelworld.com
2 · Answer check returns No
Q12
1 · Guesser asks

Is it primarily used to apply or spread a material onto a surface?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used to apply or spread a material onto a surface?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 03

Source summary (model-reported)

The instructions describe attaching the bicycle pump to the tire valve and inflating the bicycle tire until the recommended pressure is reached.

Open cyclobility.be
2 · Answer check returns No
Q13
1 · Guesser asks

Is it primarily used to strike or pound something?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used to strike or pound something?"}}
Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01
A bicycle pump is a type of positive-displacement air pump specifically designed for inflating bicycle tires. In its most basic form, a bicycle pump functions via a hand-operated piston.
Open en.wikipedia.org
2 · Answer check returns No
Q14
1 · Guesser asks

Is it primarily used to smooth, scrape, or abrade a surface?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used to smooth, scrape, or abrade a surface?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

To pump a bike tire: identify the valve type ... attach the pump head firmly, and inflate to the pressure printed on the tire sidewall ...

Open biketips.com
2 · Answer check returns No
Q15
1 · Guesser asks

Is its primary purpose to lift or support a heavy object?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose to lift or support a heavy object?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

Floor pumps are described as being used to inflate bicycle tires, while hand pumps are used to inflate tires during rides or repair flat tires.

Open mtbr.com
2 · Answer check returns No
Q16
1 · Guesser asks

Is the tool primarily used for plumbing work?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the tool primarily used for plumbing work?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns No
Q17
1 · Guesser asks

Is the tool primarily used to provide light or visibility while working?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the tool primarily used to provide light or visibility while working?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 03

Source summary (model-reported)

An LED work light can be activated via the keypad. The EasyPump allows you to set the desired target pressure, at which point it switches off automatically.

Open ebike-mtb.com
2 · Answer check returns No
Q18
1 · Guesser asks

Is its primary purpose to check whether something is level, plumb, or aligned?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose to check whether something is level, plumb, or aligned?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

Bicycle pumps are described as being used for checking and topping off tire pressure, with floor pumps often including built-in pressure gauges.

Open wheelworld.com
2 · Answer check returns No
Q19
1 · Guesser asks

Is it primarily used for electrical work?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used for electrical work?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

A bicycle pump is a type of air pump specifically designed for inflating bicycle tires. The bicycle pump compresses air. Some pumps are electrically operated.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

Certain embodiments ... provide a pump for inflating tires with air. ... embodiments ... generally relate to air pumps, and, more particularly, to air pumps for inflating bicycle tires.

Open image-ppubs.uspto.gov
2 · Answer check returns No
Q20
1 · Guesser asks

Is it primarily used for digging or moving loose material?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used for digging or moving loose material?"}}
Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns No
Q21
1 · Guesser asks

Does the tool produce heat as part of its normal operation?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the tool produce heat as part of its normal operation?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

2 · Answer check returns Yes
Q22
1 · Guesser asks

Does it normally produce an open flame?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it normally produce an open flame?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

A bicycle pump is a type of positive-displacement air pump specifically designed for inflating bicycle tires. In its most basic form, a bicycle pump functions via a hand-operated piston. The bicycle pump compresses air.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

A bicycle pump is used to pump air into a tire so that it can be filled to the proper pressure. This can be accomplished manually or with the assistance of a pressurized air system. Bike pumps that are operated manually are simple to use and do not require electricity.

Open sanantoniobikeshare.org
2 · Answer check returns No
Q23
1 · Guesser asks

Is applying heat to a material the tool's primary purpose?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is applying heat to a material the tool's primary purpose?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01
A bicycle pump is a type of positive-displacement air pump specifically designed for inflating bicycle tires. During down-stroke, the piston then displaces air from the pump into the bicycle tire.
Open en.wikipedia.org
Source 02

Source summary (model-reported)

As we use the bicycle pump to inflate the tire, we are doing work on the air by applying force and reducing its volume. This work done on the air increases its pressure and consequently its temperature; the warmth felt on the pump is due to the compressed air's increased thermal energy.

Open vaia.com
2 · Answer check returns No
Q24
1 · Guesser asks

Is the tool powered by a fuel, such as gasoline or gas?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the tool powered by a fuel, such as gasoline or gas?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

A bicycle pump is a type of positive-displacement air pump specifically designed for inflating bicycle tires. Electrically-operated pumps intended to inflate car tires can in principle be used to inflate a bicycle tire.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

A bike pump is a device designed to inflate bicycle tires by compressing and transferring air into an inner tube or tire. Types include manual pumps and electric pumps, with electric pumps described as battery-powered or rechargeable.

Open rinascltabike.com
Source 03

Source summary (model-reported)

Modern gas pumps are often used by mountain bike or road bike racers who need to save weight, and gas-filled cylinders can be used to inflate a tire.

Open en.wikipedia.org
2 · Answer check returns No
Q25
1 · Guesser asks

Is its primary purpose cleaning a surface or removing debris?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose cleaning a surface or removing debris?"}}
Oracle evidence1 model-reported source

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 01

Source summary (model-reported)

The source describes a bicycle pump as an air pump specifically designed for inflating bicycle tires and explains that it forces air into the tire.

Open en.wikipedia.org
2 · Answer check returns No
Q26
1 · Guesser asks

Is the tool's primary purpose to pump or compress air or another fluid?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the tool's primary purpose to pump or compress air or another fluid?"}}
Oracle evidence2 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 02

Source summary (model-reported)

An air pump forces ambient air into the tire. During the piston's downward stroke, the check valve seals the piston chamber, causing the air to be compressed within the pump.

Open superteamwheels.com
2 · Answer check returns Yes
Q27
1 · Guesser asks

Is it primarily used to inflate tires?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used to inflate tires?"}}
Oracle evidence3 model-reported sources

The Oracle reported these excerpts and URLs. They are not independently checked.

Source 03
Every bicycle rider should be prepared to pump up a flat tire or simply to top off their tire pressure to the recommended settings. To do so, you'll probably want a bike pump.
Open rei.com
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted

Bicycle pump

A manual air pump used to inflate bicycle tires.

Validator rationale The proposal identifies the general kind of complete bicycle pump and retains its defining function. Manual pumps are explicitly included.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"A manual air pump used to inflate bicycle tires.","name":"Bicycle pump","question":null}}
2 · Validator returns Yes