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
- 12
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 2m 50s
- Round cost
- $0.1076 All 13 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":"EAQCORIU"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
3 of 12 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 something that is human-made?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it something that is human-made?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Cambridge Dictionary defines an eyebrow as “the line of short hairs above each eye in humans.”Open dictionary.cambridge.org (opens in a new tab)
Source summary (model-reported)
The source describes eyebrows as strips of hairs following the brow ridge above the eye and discusses their biological functions, including blocking sweat and communicating emotional states.
Open carta.anthropogeny.org (opens in a new tab) 2 · Answer check returns No
Q2
1 · Guesser asks
Is it a living organism or part of a living organism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a living organism or part of a living organism?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
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. In humans, eyebrows serve two main functions.
Open en.wikipedia.org (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
Q3
1 · Guesser asks
Is it an animal or part of an animal (including humans)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it an animal or part of an animal (including humans)?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
the line of short hairs above each eye in humansOpen dictionary.cambridge.org (opens in a new tab)
Semantic Type(s): Anatomical Structure. Definition: The arched strip of hair on the bony ridge above each eye socket.Open evsexplore.semantics.cancer.gov (opens in a new tab)
Eyebrows are ridges of skin covered with hair located above the eyes.Open britannica.com (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Is it a whole animal rather than a body part, organ, or substance?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a whole animal rather than a body part, organ, or substance?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
the line of short hairs above each eye in humansOpen dictionary.cambridge.org (opens in a new tab)
Source summary (model-reported)
Semantic Type(s): Anatomical Structure. Definition: The arched strip of hair on the bony ridge above each eye socket.
Open evsexplore.semantics.cancer.gov (opens in a new tab)Eyebrows are ridges of skin covered with hair located above the eyes.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q5
1 · Guesser asks
Is it found in the human body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it found in the human body?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Semantic Type(s): Anatomical Structure. Definition: The arched strip of hair on the bony ridge above each eye socket.Open evsexplore.semantics.cancer.gov (opens in a new tab)
Eyebrows are ridges of skin covered with hair located above the eyes.Open britannica.com (opens in a new tab)
An eyebrow is an area of short terminal hairs above each eye. In humans, eyebrows serve two main functions: prevention of sweat, water, and other debris from falling down into the eye socket, and communication through facial expression.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q6
1 · Guesser asks
Is it normally visible on the outside of the human body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally visible on the outside of the human body?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The NIH Elements of Morphology page defines the eyebrow as “the arch of hair on the brow,” located over the supraorbital ridge.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The NCI page defines the eyebrow as “the arched strip of hair on the bony ridge above each eye socket” and identifies it as an anatomical structure.
Open evsexplore.semantics.cancer.gov (opens in a new tab)Source summary (model-reported)
The page describes human eyebrows as “visible, hairy eyebrows” located above each eye.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns Yes
Q7
1 · Guesser asks
Is it located on the head or face?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located on the head or face?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The page identifies the eyebrow as part of the anatomy of the periorbital region and defines it as “The arch of hair on the brow,” overlying the supraorbital ridge.
Open elementsofmorphology.nih.gov (opens in a new tab)The study concludes: “The male eyebrow sits along the supraorbital ridge and has a flat contour.” It describes the eyebrow's anatomical relation to the eye and supraorbital rim.Open pubmed.ncbi.nlm.nih.gov (opens in a new tab)
Cambridge Dictionary defines an 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
Q8
1 · Guesser asks
Is it the eye, the mouth, or a part located within or immediately around the eye or mouth (such as a tooth, tongue, lip, eyelid, or eyelash)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it the eye, the mouth, or a part located within or immediately around the eye or mouth (such as a tooth, tongue, lip, eyelid, or eyelash)?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
The arched strip of hair on the bony ridge above each eye socket. The eyebrow is an area of thick, delicate hairs above the eye that follows the shape of the lower margin of the brow ridges.Open evsexplore.semantics.cancer.gov (opens in a new tab)
2 · Answer check returns Yes
Q9
1 · Guesser asks
Is it associated with vision or located in the eye area, rather than the mouth area?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it associated with vision or located in the eye area, rather than the mouth area?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The eyebrow is an area of thick, delicate hairs above the eye that follows the shape of the lower margin of the brow ridges. Their main function is to protect the eye.
Open evsexplore.semantics.cancer.gov (opens in a new tab)Source summary (model-reported)
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)Source summary (model-reported)
Eyebrows are ridges of skin covered with hair located above the eyes. They serve a dual purpose: protection and communication. Eyebrows act as a physical barrier ... safeguarding vision.
Open britannica.com (opens in a new tab) 2 · Answer check returns Yes
Q10
1 · Guesser asks
Is it the eye as a whole or a part of the eyeball itself (such as the iris, pupil, cornea, or sclera), rather than a surrounding feature like an eyelid, eyelash, or eyebrow?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it the eye as a whole or a part of the eyeball itself (such as the iris, pupil, cornea, or sclera), rather than a surrounding feature like an eyelid, eyelash, or eyebrow?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
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)The arched strip of hair on the bony ridge above each eye socket.Open evsexplore.semantics.cancer.gov (opens in a new tab)
Eyebrows are ridges of skin covered with hair located above the eyes.Open britannica.com (opens in a new tab)
2 · Answer check returns No
Q11
1 · Guesser asks
Is it composed of hair?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it composed of hair?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The NIH Elements of Morphology page defines the eyebrow as “The arch of hair on the brow.” It also describes the hairs in different parts of the eyebrow and notes that the eyebrow is sometimes called the supercilium.
Open elementsofmorphology.nih.gov (opens in a new tab)Britannica describes eyebrows as “ridges of skin covered with hair located above the eyes.”Open britannica.com (opens in a new tab)
Source summary (model-reported)
A review titled “The biology, structure, and function of eyebrow hair” discusses 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
Does it grow directly along the edge of the eyelid?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it grow directly along the edge of the eyelid?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Eyebrow: The arch of hair on the brow... Eyelashes: Hairs that emanate from the margins of the eyelids... The eyebrow usually extends further laterally than medially, in relation to the eye.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The area of curved, delicate hairs above our eyes are believed to channel unwanted moisture... Eyelashes are a group of hairs that grow around the edge of the eyelid.
Open aao.org (opens in a new tab) 2 · Answer check returns No
G
1 · Guesser guessesNot counted
Eyebrow
The strip of hair growing on the ridge above a person's eye socket.
Validator rationale The proposal identifies the general anatomical eyebrow, including its location and hair-bearing feature, and does not substitute an isolated hair, eye, cosmetic product, or imitation.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"The strip of hair growing on the ridge above a person's eye socket.","name":"Eyebrow","question":null}} 2 · Validator returns Yes