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.
- Questions
- 13
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 2m 50s
- Round cost
- $0.0752 All 14 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.
{"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.
Q1
1 · Guesser asks
Is it a physical, tangible object or substance?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a physical, tangible object or substance?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The NIH Human Malformation Terminology resource defines an eyebrow as “The arch of hair on the brow” and describes its medial, middle, and lateral parts.
Open elementsofmorphology.nih.gov (opens in a new tab)Cambridge Dictionary defines eyebrow as “the line of short hairs above each eye in humans.”Open dictionary.cambridge.org (opens in a new tab)
2 · Answer check returns Yes
Q2
1 · Guesser asks
Is it naturally occurring, rather than man-made or manufactured?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it naturally occurring, rather than man-made or manufactured?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The American Academy of Ophthalmology states that, as humans evolved, body and facial hair diminished but eyebrows and eyelashes remained core features. It describes eyebrows as curved hairs above the eyes.
Open aao.org (opens in a new tab)Source summary (model-reported)
The NIH Elements of Morphology defines an eyebrow as the arch of hair on the brow and discusses it as part of the anatomy of the periorbital region.
Open elementsofmorphology.nih.gov (opens in a new tab)An eyebrow is an area of short terminal hairs above each eye that follows the shape of the lower margin of the brow ridges of some mammals.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q3
1 · Guesser asks
Is it, or was it ever, a living organism or part of one?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it, or was it ever, a living organism or part of one?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The NIH Elements of Morphology resource defines an eyebrow as “the arch of hair on the brow” and identifies it as an anatomical feature with medial, middle, and lateral parts.
Open elementsofmorphology.nih.gov (opens in a new tab)“An eyebrow is an area of short terminal hairs above each eye that follows the shape of the lower margin of the brow ridges of some mammals.”Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Does it belong to the animal kingdom, or is it derived from an animal?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it belong to the animal kingdom, or is it derived from an animal?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Eyebrow: The arch of hair on the brow... The eyebrow is sometimes referred to as the supercilium.Open elementsofmorphology.nih.gov (opens in a new tab)
All animals are members of the Kingdom Animalia, also called Metazoa.Open animaldiversity.org (opens in a new tab)
Eyebrow hair follicles share the same basic structure as hair follicles elsewhere on the body, but are distinguished by their shorter anagen (growing) phase.Open pubmed.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns Yes
Q5
1 · Guesser asks
Is it a whole animal (or kind of animal), rather than a body part or product derived from an animal?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a whole animal (or kind of animal), rather than a body part or product derived from an animal?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The eyebrow is defined as “the arch of hair on the brow” within the anatomy of the human periorbital region.
Open elementsofmorphology.nih.gov (opens in a new tab)The eyebrows consist of thickened integument, connected beneath with the Orbicularis oculi, Corrugator, and Frontalis muscles.Open imaios.com (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks
Is it a substance produced or secreted by an animal (such as milk, honey, silk, or venom), rather than a part of the animal's anatomy?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a substance produced or secreted by an animal (such as milk, honey, silk, or venom), rather than a part of the animal's anatomy?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Eyebrow: The arch of hair on the brow ... The eyebrow is sometimes referred to as the supercilium.Open elementsofmorphology.nih.gov (opens in a new tab)
The accessory visual structures ... including the eyebrow, eyelids, and lacrimal apparatus. ... The eyebrow is an area of thick, short hairs above the eye.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns No
Q7
1 · Guesser asks
Is it normally found on or inside the human body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally found on or inside the human body?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Eyebrow: The arch of hair on the brow ... The eyebrows usually extend further laterally than medially, in relation to the eye.Open elementsofmorphology.nih.gov (opens in a new tab)
The line of short hairs above each eye in humans.Open dictionary.cambridge.org (opens in a new tab)
2 · Answer check returns Yes
Q8
1 · Guesser asks
Is it located entirely or primarily inside the human body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located entirely or primarily inside the human body?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Brow: The soft tissue at the junction of the frontalis and orbicularis oculi muscles, overlying the bony supraorbital ridge. Eyebrow: The arch of hair on the brow.Open elementsofmorphology.nih.gov (opens in a new tab)
Source summary (model-reported)
The male eyebrow sits along the supraorbital ridge and has a flat contour. The study describes the eyebrow's topographic location relative to the eye and supraorbital rim.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns No
Q9
1 · Guesser asks
Is it primarily located on the human head or face?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily located on the human head or face?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The anatomy of the non-globe periorbital region is depicted... Eyebrow: The arch of hair on the brow... The eyebrows usually extend further laterally than medially, in relation to the eye.
Open elementsofmorphology.nih.gov (opens in a new tab)the line of short hairs above each eye in humansOpen dictionary.cambridge.org (opens in a new tab)
2 · Answer check returns Yes
Q10
1 · Guesser asks
Is it a sensory organ or directly responsible for a special sense such as sight, hearing, smell, or taste?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a sensory organ or directly responsible for a special sense such as sight, hearing, smell, or taste?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Eyebrows act as a barrier, diverting moisture away from the eyes toward the sides of the face... Eyebrows are also great for nonverbal communication. They help convey a wide range of emotions, from surprise to anger.
Open britannica.com (opens in a new tab)Source summary (model-reported)
The accessory visual structures... include the eyebrow, eyelids, and lacrimal apparatus. The main function [of the eyebrows] is to prevent sweat, water, and other debris falling into the eye, but they are also important to human communication and facial expressions.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns No
Q11
1 · Guesser asks
Does it consist of hair?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it consist of hair?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The source defines the eyebrow as “The arch of hair on the brow” and describes the hairs in its medial, middle, and lateral parts.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The article specifically concerns “eyebrow hair” and states that eyebrow hair follicles share the same basic structure as hair follicles elsewhere on the body.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns Yes
Q12
1 · Guesser asks
Is it located on or around the eyes?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located on or around the eyes?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Eyebrow: The arch of hair on the brow... The eyebrows usually extend further laterally than medially, in relation to the eye.Open elementsofmorphology.nih.gov (opens in a new tab)
the arch of hair that covers this ridge; the transverse bony ridge over each eyeOpen dictionary.com (opens in a new tab)
2 · Answer check returns Yes
Q13
1 · Guesser asks
Does it grow along the edge of the eyelid?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it grow along the edge of the eyelid?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The eyebrow is the arch of hair on the brow, overlying the bony supraorbital ridge. Eyelashes are hairs that emanate from the margins of the eyelids.
Open elementsofmorphology.nih.gov (opens in a new tab) 2 · Answer check returns No
G
1 · Guesser guessesNot counted
eyebrow
The strip of hair growing above the eye socket on the human face
Validator rationale The proposal identifies the human eyebrow as the anatomical feature above the eye; it does not refer to an isolated hair, the eye, or an imitation.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"The strip of hair growing above the eye socket on the human face","name":"eyebrow","question":null}} 2 · Validator returns Yes