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 11s
- Round cost
- $0.1669 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":"EAQCORIU"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
4 of 13 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 a physical object or substance?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a physical object or substance?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
eyebrow noun [ C ] ... the line of short hairs above each eye in humansOpen dictionary.cambridge.org (opens in a new tab)
Source summary (model-reported)
The American Heritage Dictionary defines an eyebrow as “the arch of short hairs covering” the bony ridge over the eye. Other listed dictionary definitions describe it as a hairy arch above the eye or an arch of hair above each eye.
Open wordnik.com (opens in a new tab) 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 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” and describes its anatomical position and parts.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The PubMed record describes eyebrow hair follicles, their morphogenesis and cycling, and identifies eyebrow hair as a biological anatomical subject.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab)Source summary (model-reported)
The American Academy of Ophthalmology describes eyebrows as curved hairs above the eyes and discusses their biological functions, while separately noting that people may wax, tweeze, or dye them.
Open aao.org (opens in a new tab) 2 · Answer check returns No
Q3
1 · Guesser asks
Is it a living organism or part of one?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it 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 definitions for the terms utilized in describing the features within this region are listed alphabetically... Eyebrow: The arch of hair on the brow.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The study concerns the topographic anatomy of the human eyebrow and describes its three-dimensional relation to the eye and supraorbital rim. The article indexes 'Eyebrows / anatomy & histology' and 'Humans.'
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns Yes
Q4
1 · Guesser asks
Is it an animal or part of an animal?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it an animal or part of an animal?"}}Oracle evidence1 model-reported source
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)
2 · Answer check returns Yes
Q5
1 · Guesser asks
Is it a whole animal, rather than an anatomical part or animal product?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a whole animal, rather than an anatomical part or animal product?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Cambridge Dictionary defines 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 page describes an eyebrow as an area of short terminal hairs above each eye, following 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 it an anatomical body part that humans also have?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it an anatomical body part that humans also have?"}}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 (Fig. 2).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)
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)
2 · Answer check returns Yes
Q7
1 · Guesser asks
Is it visible on the exterior of a healthy human body without medical equipment?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it visible on the exterior of a healthy human body without medical equipment?"}}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...
Open wikipedia.org (opens in a new tab)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)
2 · Answer check returns Yes
Q8
1 · Guesser asks
Is it located on the head or neck?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located on the head or neck?"}}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 ... The eyebrow is sometimes referred to as the supercilium.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The forehead region constitutes the upper third of the face ... and the eyebrows overlying the supraorbital ridges (laterally).
Open emedicine.medscape.com (opens in a new tab) 2 · Answer check returns Yes
Q9
1 · Guesser asks
Does it contain specialized sensory receptors for sight, hearing, smell, or taste?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it contain specialized sensory receptors for sight, hearing, smell, or taste?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Eyebrow hair follicles share the same basic structure as hair follicles elsewhere on the body... the hair follicle transmits sensory information to the nervous system via neuroreceptors that respond to mechanical stimuli above the skin surface.
Open jddonline.com (opens in a new tab)At the base of the hair follicle are sensory nerve fibers that wrap around each hair bulb. Bending the hair stimulates the nerve endings allowing a person to feel that the hair has been moved. One of the main functions of hair is to act as a sensitive touch receptor.Open medlineplus.gov (opens in a new tab)
Special senses have specialized sense organs and include vision (eyes), hearing (ears), balance (ears), taste (tongue), and smell (nasal passages).Open rotel.pressbooks.pub (opens in a new tab)
2 · Answer check returns No
Q10
1 · Guesser asks
Is it part of the mouth or inside the mouth?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it part of the mouth or inside the mouth?"}}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 No
Q11
1 · Guesser asks
Is it made up of hair?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it made up 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 an eyebrow as “The arch of hair on the brow” and separately describes the hairs of its medial, middle, and lateral parts.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
Cambridge Dictionary defines eyebrow as “the line of short hairs that humans have above each eye.”
Open dictionary.cambridge.org (opens in a new tab) 2 · Answer check returns Yes
Q12
1 · Guesser asks
Is it located immediately above or along the edge of the eyes?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located immediately above or along the edge of the eyes?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The eyebrow is 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)
Cambridge 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
Q13
1 · Guesser asks
Does it grow directly from the edges of the eyelids?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it grow directly from the edges of the eyelids?"}}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... Eyelashes: Hairs that emanate from the margins of the eyelids.Open elementsofmorphology.nih.gov (opens in a new tab)
Eyelashes are the short hairs that grow along the edge of our eyelids.Open aao.org (opens in a new tab)
The area of curved, delicate hairs above our eyes... 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 above each eye.
Validator rationale The proposal identifies the general human eyebrow, the anatomical strip of short hair above the eye, rather than an isolated hair or unrelated imitation.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"The strip of hair growing above each eye.","name":"Eyebrow","question":null}} 2 · Validator returns Yes