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
- 19
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 4m 35s
- Round cost
- $0.1800 All 20 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":"AMZAISLM"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
Is the subject a physical, tangible entity?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject a physical, tangible entity?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The NIH defines the brow as soft tissue overlying the bony supraorbital ridge and defines the eyebrow as "The arch of hair on the brow."
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)
Is the subject a living organism or part of a living organism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject 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)
The NIH anatomy reference defines the eyebrow as “the arch of hair on the brow” and discusses it as a feature of the human periorbital region.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The eyebrow is described as an area of coarse skin hairs above the eye that follows the shape of the brow ridges, and it is categorized as a facial feature.
Open wikidoc.org (opens in a new tab)Does the subject belong to the kingdom Animalia or come from an animal?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does the subject belong to the kingdom Animalia or come from an animal?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The NIH defines an eyebrow as “the arch of hair on the brow” and describes it within the anatomy of the human periorbital region.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The source describes human eyebrows as a strip of hair on the brow ridge and discusses them as a human anatomical feature.
Open carta.anthropogeny.org (opens in a new tab)Source summary (model-reported)
The PubMed record identifies eyebrow hair as a biological structure and discusses eyebrow hair follicles, their anatomy, growth, and physiology.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab)Is the subject an entire individual animal or a species/kind of animal, rather than a body part or animal product?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject an entire individual animal or a species/kind of animal, rather than a body part or animal product?"}}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).Open elementsofmorphology.nih.gov (opens in a new tab)
The eyebrow is an area of thick, short hairs above the eye.Open en.wikipedia.org (opens in a new tab)
Is the subject naturally a part of the anatomy (such as an organ, bone, or tissue) of a human or animal?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject naturally a part of the anatomy (such as an organ, bone, or tissue) of a human or animal?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The general 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 periocular region is one of the most eye-catching three-dimensional (3D) facial features. Its complex surface morphology is formed by various anatomical subunits comprising the palpebral fissure, eyelids, endocanthion, exocanthion, and eyebrow.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
Is the subject located entirely or primarily inside the body (an internal organ or structure)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is the subject located entirely or primarily inside the body (an internal organ or structure)?"}}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 brow as soft tissue overlying the bony supraorbital ridge.
Open elementsofmorphology.nih.gov (opens in a new tab)An eyebrow is an area of short terminal hairs above each eye.Open en.wikipedia.org (opens in a new tab)
Is this anatomical feature naturally found on the human body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this anatomical feature naturally found on the human body?"}}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 identifies the eyebrow within the anatomy of the human periorbital region and defines it as “the arch of hair on the brow.”
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
Britannica describes eyebrows as an often overlooked feature of the face and explains their protective functions for the eyes.
Open britannica.com (opens in a new tab)Is this body part located on the head or neck?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part 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 brow is soft tissue overlying the bony supraorbital ridge.
Open elementsofmorphology.nih.gov (opens in a new tab)The forehead or brow is the bony part of the head above the eyes.Open wikidoc.org (opens in a new tab)
Is this body part directly associated with one of the primary senses (such as sight, hearing, smell, or taste)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part directly associated with one of the primary senses (such as sight, hearing, smell, or taste)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The main function of the eyebrows is to prevent moisture, mostly salty sweat and rain, from flowing into the eye, an organ critical to sight. ... Together with the eyebrows, the brow ridges also shade the eyes from sunlight.Open wikidoc.org (opens in a new tab)
Special senses include the vision for which the eyes are the specialized sense organs, hearing (ears), balance (ears), taste (tongue), and smell (nasal passages).Open bio.libretexts.org (opens in a new tab)
Is this body part primarily associated with vision or sight?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part primarily associated with vision or sight?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Britannica describes eyebrows as diverting moisture and capturing small particles before they reach the eye, shielding the eyes from sun glare, and helping convey emotions through nonverbal communication.
Open britannica.com (opens in a new tab)Source summary (model-reported)
The main biological function of eyebrows is to keep sweat and moisture away from the eyes. The source also describes eyebrows as helping protect the eyes and express emotions.
Open visionsource.com (opens in a new tab)Is this body part primarily associated with hearing?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part primarily associated with hearing?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The eyebrow is categorized under the visual organ and accessory visual structures. It is an arched eminence above the orbit supporting numerous short hairs.
Open imaios.com (opens in a new tab)Source summary (model-reported)
The eyebrow is an accessory visual structure. Its main function is to prevent sweat, water, and other debris from falling into the eye; eyebrows also contribute to communication and facial expressions.
Open en.wikipedia.org (opens in a new tab)Is this body part primarily associated with the sense of smell?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part primarily associated with the sense of smell?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
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)Source summary (model-reported)
Eyebrow ... Human body > Regions of head ... Sense organs > Visual organ > Accessory visual structures > Eyebrow.
Open imaios.com (opens in a new tab)Is this body part located inside the mouth?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part located inside the mouth?"}}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 hairs are oriented... in relation to the eye.
Open elementsofmorphology.nih.gov (opens in a new tab)Conclusions: The male eyebrow sits along the supraorbital ridge and has a flat contour.Open pubmed.ncbi.nlm.nih.gov (opens in a new tab)
Is this body part located around or bordering the opening of the mouth?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part located around or bordering the opening of the mouth?"}}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 anatomy of the various structures is described in more detail below.
Open elementsofmorphology.nih.gov (opens in a new tab)The male eyebrow sits along the supraorbital ridge... The location of the eyebrow relative to the pupil and the lateral canthus... was measured.Open europepmc.org (opens in a new tab)
Does this anatomical structure encompass the entire front surface of the head, including multiple different features like the forehead, cheeks, and chin?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does this anatomical structure encompass the entire front surface of the head, including multiple different features like the forehead, cheeks, and chin?"}}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, and are wider and thicker medially.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
eyebrow noun ... the line of short hairs that humans have above each eye
Open dictionary.cambridge.org (opens in a new tab)Is this body part or structure primarily composed of hair?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part or structure primarily composed of hair?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The NIH anatomy reference defines the eyebrow as “the arch of hair on the brow” and distinguishes the brow itself as soft tissue overlying the bony supraorbital ridge.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The page identifies eyebrow hairs, also referred to as the supercilium, as terminal hair located on the brow.
Open imaios.com (opens in a new tab)Is this hair located primarily on the upper part of the head or scalp?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this hair located primarily on the upper part of the head or scalp?"}}Oracle evidence2 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)Source summary (model-reported)
The forehead is a region with boundaries of the hairline as the upper border and the eyebrow as the lower border.
Open link.springer.com (opens in a new tab)Is this hair located on or attached to the eyelid?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this hair located on or attached to the eyelid?"}}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... Eyelashes: Hairs that emanate from the margins of the eyelids... Eyelid... A fold of skin and its subcutaneous components that covers the anterior globe. The upper lid is bounded by the soft tissue overlying the inferior border of the bony supraorbital ridge and inferiorly by the lid margin.Open elementsofmorphology.nih.gov (opens in a new tab)
Cambridge defines eyebrow as “the thin line of hair that is above each eye.”Open dictionary.cambridge.org (opens in a new tab)
Is this hair located above the eyes?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this hair located above the eyes?"}}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)the line of short hairs above each eye in humansOpen dictionary.cambridge.org (opens in a new tab)
eyebrow
the strip of hair growing above the eye socket on humans and other primates
Validator rationale The proposal identifies the general anatomical eyebrow, including its defining location and hair-bearing function. Mentioning humans and other primates does not contradict the human-eyebrow target.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"the strip of hair growing above the eye socket on humans and other primates","name":"eyebrow","question":null}}