Deep20Bench
v1.1Current

Benchmark edition

Edition 1.1 settings

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

Round 3

Round 3

Identified Eyebrow in 17 counted questions.

Back to all Eyebrow rounds
Questions
17
Outcome
Solved
Format errors
No errors
Duration
6m 41s
Round cost
$0.1464 All 18 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":"AMZAISLM"}

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

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)

The American Academy of Ophthalmology describes eyebrows as the area of curved hairs above the eyes and discusses their biological functions, including directing moisture away from the eyes.

Open aao.org
2 · Answer check returns No
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)

The American Academy of Ophthalmology describes eyebrows as curved hairs above the eyes and discusses their biological functions, including directing moisture away from the eyes and helping with facial expression.

Open aao.org
2 · Answer check returns No
Q3
1 · Guesser asks

Is it a physical object that occupies space?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a physical object that occupies space?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
Q4
1 · Guesser asks

Is it a celestial body (such as a planet, star, moon, or asteroid)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a celestial body (such as a planet, star, moon, or asteroid)?"}}
Oracle evidence3 model-reported sources

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

Source 02

Source summary (model-reported)

The eyebrow is an area of coarse skin hairs above the eye that follows the shape of the brow ridges. The page categorizes it under facial hair, eye, and facial features.

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

Is it a geographical feature on Earth?

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

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

2 · Answer check returns No
Q6
1 · Guesser asks

Is it a mineral or rock?

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

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

2 · Answer check returns No
Q7
1 · Guesser asks

Is it of biological origin (produced by or derived from living organisms)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it of biological origin (produced by or derived from living organisms)?"}}
Oracle evidence3 model-reported sources

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

2 · Answer check returns Yes
Q8
1 · Guesser asks

Is it a body part of an animal or plant?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a body part of an animal or plant?"}}
Oracle evidence1 model-reported source

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

2 · Answer check returns Yes
Q9
1 · Guesser asks

Is it a part of a plant?

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

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

2 · Answer check returns No
Q10
1 · Guesser asks

Is it a human body part?

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

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

Source 02

Source summary (model-reported)

Merriam-Webster's medical definition describes an eyebrow as “the ridge over the eye or the hair growing usually in a line or arch on the skin over it.”

Open merriam-webster.com
Source 03

Source summary (model-reported)

Dictionary.com defines eyebrow as the arch or ridge forming the upper part of the orbit of the eye, or the fringe of hair growing on that arch or ridge.

Open dictionary.com
2 · Answer check returns Yes
Q11
1 · Guesser asks

Is it an internal organ?

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

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

2 · Answer check returns No
Q12
1 · Guesser asks

Is it located on the head (including the face)?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located on the head (including the face)?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
Q13
1 · Guesser asks

Is it typically found in pairs on a person?

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

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

Source 01

Source summary (model-reported)

The NIH describes the eyebrow as “the arch of hair on the brow” and discusses “the eyebrow” in relation to the eye. It also uses “eyebrows” as the plural form and notes that the term relates to a pair of structures.

Open elementsofmorphology.nih.gov
Source 02

Source summary (model-reported)

Britannica describes eyebrows as a feature of the human face that protect the eyes and refers to their functions, including diverting moisture away from the eyes and shielding the eyes from sunlight.

Open britannica.com
2 · Answer check returns Yes
Q14
1 · Guesser asks

Is it a sensory organ?

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

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

Source 01

Source summary (model-reported)

The Eyebrows (supercilia) are two arched eminences of integument, which surmount the upper circumference of the orbits, and support numerous short, thick hairs...

Open imaios.com
Source 02

Source summary (model-reported)

The accessory visual structures ... are the protecting and supporting structures ... of the eye, including the eyebrow, eyelids, and lacrimal apparatus. The eyebrow is an area of thick, short hairs above the eye. The main function is to prevent sweat, water, and other debris falling into the eye...

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

Is it located on the face?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located on the face?"}}
Oracle evidence2 model-reported sources

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

Source 01

Source summary (model-reported)

The page is part of the NIH Human Malformation Terminology's Head and Face Terminology. It defines the eyebrow as the arch of hair on the brow and describes the brow as soft tissue overlying the bony supraorbital ridge.

Open elementsofmorphology.nih.gov
2 · Answer check returns Yes
Q16
1 · Guesser asks

Does it consist mainly of hair?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it consist mainly of hair?"}}
Oracle evidence2 model-reported sources

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

2 · Answer check returns Yes
Q17
1 · Guesser asks

Is it located above the eyes?

Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located above the eyes?"}}
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

eyebrows

paired strips of hair on the human face located above the eyes

Validator rationale The proposal identifies the general human eyebrow body feature, including its defining location and hair structure. The plural wording appropriately refers to the paired eyebrows and does not indicate an isolated hair, eye, cosmetic, or imitation.

Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"paired strips of hair on the human face located above the eyes","name":"eyebrows","question":null}}
2 · Validator returns Yes