Deep20Bench
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Round

Round 1

Round 1

Identified Bike pump in 23 counted questions.

Back to all Bike pump rounds
Questions
23
Outcome
Solved
Format errors
No errors
Duration
4m 45s
Round cost
$0.1605 All 24 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":"EAQCORIU"}

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

3 of 23 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 the subject primarily made by humans?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject primarily made by humans?"}}
Oracle evidence3 model-reported sources

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

2 · Answer check returns Yes
Q2
1 · Guesser asks

Is it a physical object that can be moved from place to place?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a physical object that can be moved from place to place?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

The page describes bicycle-pump types including floor pumps, frame-mounted pumps, compact or mini pumps, foot-operated pumps, and electric pumps.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The manufacturer describes its electric bike pump as a “compact electric bike pump” and calls it “portable electronic inflation.” It lists the pump's weight as 206.5 g, or 241 g with the flex hose.

Open ride.lezyne.com
Source 03

Source summary (model-reported)

The product is titled “Portable Electric Air Pump”; the page says it is roughly the size of a water bottle, easy to put in a backpack, and lists dimensions of 177 × 78 × 57 mm and a weight of 598 g.

Open lectricebikes.com
2 · Answer check returns Yes
Q3
1 · Guesser asks

Is it small enough for one person to hold in their hands?

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

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

Source 01

Source summary (model-reported)

There are three main types of bicycle pumps: stand pump, hand pump, and foot pump. Mini pumps (or compact pumps) are usually hand pumps that have been made very small and light, so that they can readily be carried on a bicycle for emergency use; they can fit in pockets, saddle bags, or even include a water bottle bracket.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

Our range is split into two main categories - hand pumps and track pumps. Hand pumps and mini hand pumps are ideal for transporting in rucksacks and can be attached to the frame of your bike. A track pump, or a floor pump as they are also known, features a base mount that you can step on to hold in place.

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

Does it require electricity to perform its primary function?

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

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

Source 01
Mechanical bicycle pumps: these use human power to operate, and have the advantage of being able to be installed anywhere without the need for an electrical connection. Electric inflators for bicycles ... require a power supply.
Open altinnova.com
Source 02

Source summary (model-reported)

A bicycle pump is a type of positive-displacement air pump specifically designed for inflating bicycle tires. The page describes stand, hand, and foot pumps, including operation by pulling and pushing the handle.

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

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

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used as a tool to perform a practical task?"}}
Oracle evidence3 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 in preparing or eating food?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used in preparing or eating food?"}}
Oracle evidence2 model-reported sources

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

Source 02

Source summary (model-reported)

What do you need a bike pump for? For inflating a tire, of course! The article discusses choosing bike pumps for re-inflating tires and repairing bicycle tires during rides.

Open decathlon.com
2 · Answer check returns No
Q7
1 · Guesser asks

Is it typically used for writing or drawing?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it typically used for writing or drawing?"}}
Oracle evidence1 model-reported source

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

2 · Answer check returns No
Q8
1 · Guesser asks

Is it primarily used for building, repairing, or modifying physical objects?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used for building, repairing, or modifying physical objects?"}}
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 users operate the pump to fill a tire with more air when its pressure is low.

Open image-ppubs.uspto.gov
2 · Answer check returns No
Q9
1 · Guesser asks

Is it primarily used on the human body?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used on the human body?"}}
Oracle evidence1 model-reported source

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

2 · Answer check returns No
Q10
1 · Guesser asks

Is it primarily used for cleaning?

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

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

Source 02

Source summary (model-reported)

The guide describes using a pump to inflate bicycle tires to their recommended pressure and identifies frame pumps as pumps used to inflate tires during bicycle maintenance.

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

Is its main purpose to measure or indicate something?

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

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

Source 01
A bicycle pump is defined as “a small pump used for putting air in bicycle tires.” More generally, a pump is “a device that forces liquid, air, or gas into or out of something.”
Open britannica.com
Source 02

Source summary (model-reported)

The source states that most floor pumps have a built-in pressure gauge to indicate tire pressure, showing that measurement can be an added feature. It also describes pumps as inflating bicycle tires and notes that some pumps may not have such a gauge.

Open en.wikipedia.org
Source 03

Source summary (model-reported)

The instructions describe using a pump to inflate tires and advise users to keep an eye on the pressure gauge while pumping, distinguishing the pump's inflation function from pressure indication.

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

Is it commonly used in or around a home?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it commonly used in or around a home?"}}
Oracle evidence2 model-reported sources

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

Source 01
The floor pumps in this guide — meant to be used at home, before you set out on your ride — will keep you rolling... If you own a bicycle, you need a pump.
Open nytimes.com
Source 02
While many bicyclists have their own portable bike pump which they keep at home or take with them on rides, “public” bicycle pumps exist that are configured to be secured to the ground outdoors.
Open image-ppubs.uspto.gov
2 · Answer check returns Yes
Q13
1 · Guesser asks

Is its primary purpose to open, close, lock, or unlock something?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose to open, close, lock, or unlock something?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns No
Q14
1 · Guesser asks

Is its primary purpose to hold, contain, or organize other objects?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose to hold, contain, or organize other objects?"}}
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. 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)

Frame and mini pumps are described as being carried on rides to repair flat tires, while floor pumps are used for checking and topping off tires before rides. The page emphasizes tire inflation as the function of these pump types.

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

Is it primarily used to cut or pierce materials?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used to cut or pierce materials?"}}
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 specifically designed for inflating bicycle tires. It is a type of positive-displacement air pump; during the down-stroke, it displaces air from the pump into the bicycle tire.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The guide describes using a pump to inflate bicycle tires to their recommended pressure and identifies selecting the correct valve type as part of the inflation process.

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

Is it used to produce a flame or start a fire?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used to produce a flame or start a fire?"}}
Oracle evidence3 model-reported sources

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

Source 02

Source summary (model-reported)

It is also possible to find fire syringes that can be used to start fires. Such devices have a small cup in the face of the piston... One then quickly forces the piston into the cylinder, igniting the char cloth.

Open web.physics.ucsb.edu
Source 03

Source summary (model-reported)

A bicycle tire pump is an example of a positive displacement pump... Positive displacement pumps are characterized by ... pushing [a specific volume] out through the discharge line.

Open nfpa.org
2 · Answer check returns No
Q17
1 · Guesser asks

Is it primarily used indoors?

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

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

Source 01

Source summary (model-reported)

REI describes floor pumps as leave-at-home pumps suitable for garage and bike shop use, while frame-fit pumps attach to a bicycle frame and provide a solution for flats on the road or trail.

Open rei.com
Source 02

Source summary (model-reported)

Decathlon states that riders often carry compact road bike pumps for emergencies and use cycle pumps at home for regular pressure checks. It also says compact pumps can be used while out cycling, whereas floor pumps are commonly used at home or in a garage.

Open decathlon.co.uk
Source 03

Source summary (model-reported)

The patent document states that many bicyclists keep portable bike pumps at home or take them on rides, and that public bicycle pumps are secured outdoors along bike paths, at parks, bike stations, or shops.

Open image-ppubs.uspto.gov
2 · Answer check returns Rather no
Q18
1 · Guesser asks

Is it primarily used for gardening or tending plants?

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

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

Source 02

Source summary (model-reported)

Bell's Zephyr frame pumps provide a quick, easy solution for inflating your tires or fixing a flat on the road or trail. The product is categorized as a bike accessory and its activity as cycling.

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

Is it primarily used in connection with a vehicle or transportation?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used in connection with a vehicle or transportation?"}}
Oracle evidence1 model-reported source

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

2 · Answer check returns Yes
Q20
1 · Guesser asks

Is it primarily used with a bicycle?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used with a bicycle?"}}
Oracle evidence2 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 notes that it has connections or adapters for common bicycle valves.

Open en.wikipedia.org
2 · Answer check returns Yes
Q21
1 · Guesser asks

Is its main purpose to warn or signal to others while riding?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its main purpose to warn or signal to others while riding?"}}
Oracle evidence2 model-reported sources

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

Source 02

Source summary (model-reported)

The guide explains that bicycle pumps are used to repair flat tires on rides and to check and top off tire pressure before rides; it describes floor pumps as an efficient way to pump up tires.

Open blueridgecyclery.com
2 · Answer check returns No
Q22
1 · Guesser asks

Is it normally attached to the bicycle while the bicycle is being ridden?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally attached to the bicycle while the bicycle is being ridden?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

Frame-fit Pumps ... snap directly onto your road-bike frame ... Most can be attached to various places on your bicycle frame ... Mini Pumps ... provide a quick, easy solution to flats on the road or trail. ... Floor pumps are your fastest, safest pump option.

Open rei.com
Source 02
We recommend that every cyclist should have two bicycle pumps, one that's carried on rides to repair flat tires ... and another for checking and topping off tires before rides (called a 'floor' pump). ... most mini pumps ... come with brackets that are mounted onto the frame for carrying the pump. Minis also can be carried in a jersey or pack if you prefer not to adorn your bike with a pump.
Open blueridgecyclery.com
2 · Answer check returns Rather no
Q23
1 · Guesser asks

Is it used to inflate bicycle tires?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used to inflate bicycle tires?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
G
1 · Guesser guessesNot counted

Bicycle pump

A manually operated pump used to inflate bicycle tires.

Validator rationale The proposal identifies a bicycle pump, a recognized manual subtype of the general bike pump target, with the correct function.

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