Deep20Bench
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Edition 1.1 settings

10 subjects3 rounds per subject40 question limit
Question answersYesRather yesRather noNoUnknown
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Round

Round 1

Round 1

Identified Bike pump in 26 counted questions.

Back to all Bike pump rounds
Questions
26
Outcome
Solved
Format errors
No errors
Duration
7m 44s
Round cost
$0.4692 All 27 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.

5 of 25 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 a physical object or substance?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a physical object or substance?"}}
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 Yes
Q2
1 · Guesser asks

Is it human-made?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it human-made?"}}
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; type of: pump, a mechanical device that moves fluid or gas by pressure or suction.

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

Is it small enough for an adult to carry in one hand?

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

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

Source 01

Source summary (model-reported)

Several basic types are available, including floor pumps, frame-mounted, compact or mini, foot-operated, double-action, blast or tubeless, and electric pumps. Mini pumps are usually hand pumps made very small and light so they can readily be carried on a bicycle.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The page describes a range including mini, electric, and manual bicycle pumps. It characterizes portable electric bike pumps as compact and lightweight, suitable for carrying in a bike bag or backpack.

Open rockbrosus.com
Source 03

Source summary (model-reported)

The guide distinguishes floor pumps from frame and mini pumps. It says most mini pumps can be carried in a jersey or pack, while floor pumps are presented as a separate, larger-use type.

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

Does it use electricity to perform its primary function?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it use 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

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 Unknown
Q5
1 · Guesser asks

Is it commonly found in a home?

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

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

Source 01

Source summary (model-reported)

The article describes the Blackburn Core Pro Floor Pump as an “exclusive professional floor pump for home use” and says it is intended to meet the needs of home users and bicycle mechanics.

Open velomotion.net
Source 02

Source summary (model-reported)

A bicycle pump is a positive-displacement air pump specifically designed for inflating bicycle tires. The page identifies several basic types, including floor pumps, frame-mounted pumps, and compact or mini pumps.

Open en.wikipedia.org
2 · Answer check returns Yes
Q6
1 · Guesser asks

Is it primarily used to prepare, serve, or consume food or drink?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used to prepare, serve, or consume food or drink?"}}
Oracle evidence3 model-reported sources

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

Source 02

Source summary (model-reported)

Use pump with correct valve type to inflate tires to the recommended PSI. The guide describes bicycle pumps as tools for inflating bicycle tires and maintaining their pressure.

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

Is it primarily used for personal hygiene, grooming, or health care?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used for personal hygiene, grooming, or health care?"}}
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, including locating the tire's recommended pressure, identifying the valve type, and using the correct pump to inflate the tire.

Open schwinnbikes.com
2 · Answer check returns No
Q8
1 · Guesser asks

Is it primarily used for entertainment, play, or recreation?

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

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

2 · Answer check returns No
Q9
1 · Guesser asks

Is it primarily used as a tool for building, repairing, or cleaning things?

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

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

Source 02

Source summary (model-reported)

Every cyclist should have two bicycle pumps: one carried on rides to repair flat tires, and another for checking and topping off tires before rides. The guide describes the latter as a floor pump and explains that its function is making tire inflation easier.

Open wheelworld.com
2 · Answer check returns No
Q10
1 · Guesser asks

Is it used for writing, drawing, or handling written information?

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

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

2 · Answer check returns No
Q11
1 · Guesser asks

Is it intended to be worn on the body?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it intended to be worn on the body?"}}
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. Mini pumps ... 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)

Mini pumps ... can be carried in a jersey or pack if you prefer not to adorn your bike with a pump. Frame and mini pumps ... come with brackets that are mounted onto the frame for carrying the pump.

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

Is it normally used as part of, or attached to, a larger object or structure?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally used as part of, or attached to, a larger object or structure?"}}
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. ... There are two main types of tire valves to which the bicycle tire pump attaches.

Open en.wikipedia.org
Source 03

Source summary (model-reported)

Some frame pumps are spring loaded and fit between the frame tubes. Others, and 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 yes
Q13
1 · Guesser asks

Is its primary purpose to hold, join, fasten, or secure something?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose to hold, join, fasten, or secure 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... the piston then displaces air from the pump into the bicycle tire.
Open en.wikipedia.org
2 · Answer check returns No
Q14
1 · Guesser asks

Is it a component of an electrical device or electrical system?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a component of an electrical device or electrical system?"}}
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 up-stroke, this piston draws air ... During down-stroke, the piston then displaces air ... some, such as the electric pumps, use an automated pumping mechanism.

Open en.wikipedia.org
2 · Answer check returns No
Q15
1 · Guesser asks

Is its primary purpose decorative?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary purpose decorative?"}}
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 let you adjust your tire pressure to the optimal level for your bike and riding style. The article describes hand, floor, CO2, and mini bike pumps as tools for inflating bicycle tires.

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

Is it made mainly of metal?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it made mainly of metal?"}}
Oracle evidence3 model-reported sources

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

Source 01

Source summary (model-reported)

The Topeak JoeBlow Max HP floor pump uses a sturdy and narrow steel barrel to ensure high-pressure performance.

Open rei.com
Source 03

Source summary (model-reported)

The listing includes manual bike pumps and an electric mini inflator bike pump, showing that the bicycle-pump category includes different operating forms.

Open decathlon.co.uk
2 · Answer check returns Unknown
Q17
1 · Guesser asks

Is it used to operate or control something else?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used to operate or control something else?"}}
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. Most floor pumps ... have a built-in pressure gauge to indicate tire pressure.

Open en.wikipedia.org
2 · Answer check returns Unknown
Q18
1 · Guesser asks

Is its primary function to cover, enclose, or protect something?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary function to cover, enclose, or protect something?"}}
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. ... During down-stroke, the piston then displaces air from the pump into the bicycle tire.

Open en.wikipedia.org
2 · Answer check returns No
Q19
1 · Guesser asks

Is it designed to move, or to help something else move, during normal use?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it designed to move, or to help something else move, during normal use?"}}
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. During up-stroke, this piston draws air through a one-way valve into the pump from outside. During down-stroke, the piston then displaces air from the pump into the bicycle tire.

Open en.wikipedia.org
2 · Answer check returns Yes
Q20
1 · Guesser asks

Does it rotate around an axle or pivot during normal use?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it rotate around an axle or pivot during normal use?"}}
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. During up-stroke, this piston draws air through a one-way valve into the pump from outside. During down-stroke, the piston then displaces air from the pump into the bicycle tire.

Open en.wikipedia.org
2 · Answer check returns No
Q21
1 · Guesser asks

Is it used to move or direct a liquid or gas?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used to move or direct a liquid or gas?"}}
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 up-stroke, this piston draws air through a one-way valve into the pump from outside. 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)

A pump is a device that forces liquid, air, or gas into or out of something. The definition specifically gives “a bicycle pump” as a small pump used for putting air in bicycle tires.

Open britannica.com
2 · Answer check returns Yes
Q22
1 · Guesser asks

Does it contain a moving part that pushes or pumps the liquid or gas?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it contain a moving part that pushes or pumps the liquid or gas?"}}
Oracle evidence2 model-reported sources

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

Source 01
In its most basic form, a bicycle pump functions via a hand-operated piston. During up-stroke, this piston draws air through a one-way valve into the pump from outside. 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)

All air pumps contain a part that moves (vane, piston, impeller, diaphragm etc.) which drives the flow of air. The page also identifies bicycle pumps as examples of air pumps.

Open en.wikipedia.org
2 · Answer check returns Yes
Q23
1 · Guesser asks

Is it primarily used to move air rather than liquids?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used to move air rather than liquids?"}}
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 up-stroke, this piston draws air through a one-way valve into the pump from outside. During down-stroke, the piston then displaces air from the pump into the bicycle tire.
Open en.wikipedia.org
2 · Answer check returns Yes
Q24
1 · Guesser asks

Is it primarily used to inflate things such as tires, balls, or balloons?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used to inflate things such as tires, balls, or balloons?"}}
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 a type of positive-displacement air pump specifically designed for inflating bicycle tires. It also states that some connection systems allow use with other inflatable products such as balls.

Open en.wikipedia.org
Source 02

Source summary (model-reported)

The source instructs users to use a pump with the correct valve type to inflate bicycle tires and describes floor, hand, and frame pumps as means of inflating those tires.

Open schwinnbikes.com
Source 03

Source summary (model-reported)

The source says the Bosch EasyPump can fill balloons and balls and can also reliably inflate car and bicycle tires, with adapters for those uses.

Open ebike-mtb.com
2 · Answer check returns Yes
Q25
1 · Guesser guesses

Air pump

A device that pushes air into objects such as tires, balls, or balloons to inflate them.

Validator rationale The proposal identifies a general air pump for various objects, which is broader than the target's specific kind: a pump designed for inflating bicycle tires.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"A device that pushes air into objects such as tires, balls, or balloons to inflate them.","name":"Air pump","question":null}}
2 · Validator returns No
Q26
1 · Guesser asks

Is it specifically designed for inflating bicycle tires?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it specifically designed for inflating bicycle tires?"}}
Oracle evidence1 model-reported source

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 small air pump designed to inflate bicycle tires.

Validator rationale The proposal identifies the general kind of bicycle pump, retaining its defining function of inflating bicycle tires.

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