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
- 14
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 1m 47s
- Round cost
- $0.0394 All 15 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.
7 of 14 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 living organism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a living organism?"}}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 (Fig. 2) [Goss, [ 1959 ]].Open elementsofmorphology.nih.gov (opens in a new tab)
Source summary (model-reported)
The article describes eyebrow hair and its follicles, including their structure, growth, and cycling, treating them as hair associated with an anatomical feature rather than as an organism.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns No
Q2
1 · Guesser asks
Is the subject primarily manufactured or constructed by humans?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject primarily manufactured or constructed by humans?"}}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 an arched strip or area of hairs above each eye socket and is classified as an anatomical structure. The source also notes that people may modify eyebrows through hair addition or removal, makeup, or piercings.
Open evsexplore.semantics.cancer.gov (opens in a new tab)Source summary (model-reported)
The American Academy of Ophthalmology describes eyebrows as curved, delicate hairs above the eyes and discusses their biological functions, including directing moisture away from the eyes. It also states that eyebrows and eyelashes remained a core part of human features as humans evolved.
Open aao.org (opens in a new tab) 2 · Answer check returns No
Q3
1 · Guesser asks
Is the subject a physical entity or substance?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a physical entity or substance?"}}Oracle evidence2 model-reported sources
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. ... Semantic Type(s): Anatomical Structure ... Preferred Name: EyebrowOpen evsexplore.semantics.cancer.gov (opens in a new tab)
Human eyebrows are composed of short, obliquely set hairs arranged in arches supra-orbitally.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Is the subject naturally occurring on Earth?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject naturally occurring on Earth?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
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... Semantic Type(s): Anatomical Structure.Open evsexplore.semantics.cancer.gov (opens in a new tab)
Eye brows are two arched eminence of skin, which surmounts the orbits. Numerous short and thick hairs... are inserted in the dermis of eye brows. Eyebrows are normally developed anatomical marking present over eyes.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns Yes
Q5
1 · Guesser asks
Is the subject normally found outdoors rather than inside living organisms?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject normally found outdoors rather than inside living organisms?"}}Oracle evidence2 model-reported sources
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 ... Semantic Type(s): Anatomical Structure.Open evsexplore.semantics.cancer.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 No
Q6
1 · Guesser asks
Is the subject a part of an animal's body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a part of an animal's body?"}}Oracle evidence2 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. Semantic Type(s): Anatomical Structure.
Open evsexplore.semantics.cancer.gov (opens in a new tab)Source summary (model-reported)
Humans are, of course, animals—more particularly, members of the order Primates.
Open britannica.com (opens in a new tab) 2 · Answer check returns Yes
Q7
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.
Eyebrow: The arch of hair on the brow.Open elementsofmorphology.nih.gov (opens in a new tab)
The eyebrow is an area of coarse skin hairs above the eye that follows the shape of the brow ridges.Open wikidoc.org (opens in a new tab)
Organs are structures inside your body that have specialized jobs. They include internal organs like your heart and brain, plus external ones like your skin.Open my.clevelandclinic.org (opens in a new tab)
2 · Answer check returns No
Q8
1 · Guesser asks
Is it a part of the human body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a part 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 anatomy of the various structures is described in more detail below. ... Eyebrow: The arch of hair on the brow (Fig. 2) ... Based on observed localized abnormalities of the eyebrow, it is useful to divide the eyebrow into three parts: medial, middle (central), and lateral.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
Your eyebrows are the curved areas of hair on your face above each of your eyes. ... Definitions of eyebrow: noun the arch of hair above each eye.
Open vocabulary.com (opens in a new tab)the line of short hairs that humans have above each eyeOpen dictionary.cambridge.org (opens in a new tab)
2 · Answer check returns Yes
Q9
1 · Guesser asks
Is it normally visible on the outside of the body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally visible on the outside of the body?"}}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)
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 area of curved, delicate hairs above our eyes are believed to channel unwanted moisture—sweat and rain in particular—away from the eye.Open aao.org (opens in a new tab)
2 · Answer check returns Yes
Q10
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
Q11
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 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 (opens in a new tab)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 (opens in a new tab) 2 · Answer check returns No
Q12
1 · Guesser asks
Is it part of the mouth?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it part of the mouth?"}}Oracle evidence2 model-reported sources
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... Semantic Type(s): Anatomical Structure... Anatomic_Structure_Is_Physical_Part_Of ... HeadOpen evsexplore.semantics.cancer.gov (opens in a new tab)
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)
2 · Answer check returns No
Q13
1 · Guesser asks
Is it composed primarily of hair?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it composed primarily of hair?"}}Oracle evidence3 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 of its medial, middle, and lateral parts.
Open elementsofmorphology.nih.gov (opens in a new tab)The source describes eyebrows as “the strip of thick, delicate hairs following the brow ridge above the eye” and discusses their functions.Open carta.anthropogeny.org (opens in a new tab)
Source summary (model-reported)
The review concerns the biology, structure, and function of eyebrow hair and states that eyebrow hair follicles share the basic structure of hair follicles elsewhere on the body.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns Yes
Q14
1 · Guesser asks
Is it located immediately above the eyes?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located immediately above the eyes?"}}Oracle evidence3 model-reported sources
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.Open evsexplore.semantics.cancer.gov (opens in a new tab)
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.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
Cambridge defines an eyebrow as hairs above each eye in humans.
Open dictionary.cambridge.org (opens in a new tab) 2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Eyebrow
The strip of hair above the human eye.
Validator rationale The proposal identifies the general anatomical feature, the human eyebrow, and does not confuse it with an isolated hair, the eye, or a cosmetic imitation.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"The strip of hair above the human eye.","name":"Eyebrow","question":null}} 2 · Validator returns Yes