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
- 15
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 6m 43s
- Round cost
- $0.1436 All 16 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 man-made?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it man-made?"}}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 an area of short terminal hairs above each eye.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
The NIH describes the eyebrow as the arch of hair on the brow and treats it as an anatomical feature of the periorbital region.
Open elementsofmorphology.nih.gov (opens in a new tab) 2 · Answer check returns No
Q2
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 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)
Source summary (model-reported)
The page classifies the eyebrow as a class of anatomical entity, human facial hair, and a set of facial hairs.
Open commons.wikimedia.org (opens in a new tab)Source summary (model-reported)
The cited review concerns the biology, structure, and function of eyebrow hair, including eyebrow hair follicles and their growth cycle.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns No
Q3
1 · Guesser asks
Is it a celestial body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a celestial body?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Meaning of eyebrow in English: eyebrow noun ... the line of short hairs above each eye in humans.Open dictionary.cambridge.org (opens in a new tab)
2 · Answer check returns No
Q4
1 · Guesser asks
Is it a concept or an abstract idea?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a concept or an abstract idea?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The line of short hairs above each eye in humans.Open dictionary.cambridge.org (opens in a new tab)
Source summary (model-reported)
Eyebrow: The arch of hair on the brow. The eyebrow is described as a structure with medial, middle, and lateral parts.
Open elementsofmorphology.nih.gov (opens in a new tab) 2 · Answer check returns No
Q5
1 · Guesser asks
Is it a geographical feature or landform?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a geographical feature or landform?"}}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 anatomical parts and orientation relative to the eye.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
Britannica defines a landform as “any conspicuous topographic feature on the Earth or a similar planetary body or satellite,” with examples including mountains, plateaus, and valleys.
Open britannica.com (opens in a new tab) 2 · Answer check returns No
Q6
1 · Guesser asks
Is it a body part or organ?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a body part or organ?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Anatomy of the Periorbital Region ... 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)
eyebrow noun ... the line of short hairs above each eye in humansOpen dictionary.cambridge.org (opens in a new tab)
2 · Answer check returns Yes
Q7
1 · Guesser asks
Is it part of a human body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it part of a 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.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
Q8
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.
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 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 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) 2 · Answer check returns No
Q9
1 · Guesser asks
Is it located on the head?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located on the head?"}}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 page defines the eyebrow as “the arch of hair on the brow” and describes it as part of the periorbital region, overlying the bony supraorbital ridge.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The supraorbital region is immediately above the eye sockets, where in humans the eyebrows are located.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns Yes
Q10
1 · Guesser asks
Does a typical human have exactly two of them?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does a typical human have exactly two of them?"}}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 eyebrows usually extend further laterally than medially, in relation to the eye ...
Open elementsofmorphology.nih.gov (opens in a new tab)Genetics are the most responsible for whether you have two distinct eyebrows or a single connected brow (referred to as a “unibrow”).Open atlanticeyeinstitute.com (opens in a new tab)
2 · Answer check returns Yes
Q11
1 · Guesser asks
Is it used primarily for vision?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used primarily for vision?"}}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 ... and capturing small particles before they reach the eye. Moreover, eyebrows can shield the eyes from the glare of the sun ... Beyond their protective function, eyebrows are also great for nonverbal communication.
Open britannica.com (opens in a new tab)Source summary (model-reported)
The main function of the eyebrows is to prevent moisture, mostly salty sweat and rain, from flowing into the eye ... Together with the eyebrows, the brow ridges also shade the eyes from sunlight. Eyebrows also ... have an important facilitative function in communication.
Open wikidoc.org (opens in a new tab) 2 · Answer check returns No
Q12
1 · Guesser asks
Is it used primarily for hearing?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used primarily for hearing?"}}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 ... and capturing small particles before they reach the eye. Moreover, eyebrows can shield the eyes from the glare of the sun ... Beyond their protective function, eyebrows are also great for nonverbal communication.
Open britannica.com (opens in a new tab)Source summary (model-reported)
The main function of the eyebrows is to prevent moisture, mostly salty sweat and rain, from flowing into the eye. Together with the eyebrows, the brow ridges also shade the eyes from sunlight.
Open wikidoc.org (opens in a new tab) 2 · Answer check returns No
Q13
1 · Guesser asks
Is it part of the nose?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it part of the nose?"}}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)
The normal anatomy of the nose is shown in Figures 1-3: the various terms used for nasal structures and dimensions... Nasal Root: The most depressed, superior part of the nose along the nasal ridge. Nasal Bridge: A saddle-shaped area that includes the nasal root and the lateral aspects of the nose.Open elementsofmorphology.nih.gov (opens in a new tab)
2 · Answer check returns No
Q14
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 evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The eyebrows consist of serial arched rows (5–7 rows) of hair growing along the superior orbital margin. The eyebrows hair are short, thin but stiff, nonpliable with a slight curve along the body, and tapering toward the end.Open pmc.ncbi.nlm.nih.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)
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
Q15
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.
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)
Eyebrow: The arch of hair on the brow.Open elementsofmorphology.nih.gov (opens in a new tab)
2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
eyebrow
the strip of hair that grows above each human eye
Validator rationale The proposal identifies the human eyebrow as the anatomical feature above the eye, matching the target general type and not an isolated hair or unrelated item.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"the strip of hair that grows above each human eye","name":"eyebrow","question":null}} 2 · Validator returns Yes