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 30s
- Round cost
- $0.0627 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":"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 a living organism or derived from a living organism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a living organism or derived from a living organism?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Larger terminal hairs are found on the scalp, eyebrows, axilla (armpits), beard and pubic regions. Human hair grows at the bulb, which is the only living part of the hair. Hair gets longer as cells in the bulb multiply and then mature into hair fibre cells.
Open betterhealth.vic.gov.au (opens in a new tab)Source summary (model-reported)
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair follicles originate in the epidermis ... the basal cells of the hair bulb divide and push cells outward in the hair root and shaft.
Open openstax.org (opens in a new tab) 2 · Answer check returns Yes
Q2
1 · Guesser asks
Is it an animal, part of an animal, or a product of an animal origin?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it an animal, part of an animal, or a product of an animal origin?"}}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 resource defines the eyebrow as “the arch of hair on the brow” and describes its anatomical position in relation to the eye.
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
Q3
1 · Guesser asks
Is it a whole animal (or kind of animal), rather than just a part, product, or processed material?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a whole animal (or kind of animal), rather than just a part, product, or processed material?"}}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 resource defines an eyebrow as “the arch of hair on the brow” and describes its medial, middle, and lateral parts.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The article states that eyebrows consist of serial arched rows of hair growing along the superior orbital margin and that the eyebrow has three parts: head, body, and tail.
Open pmc.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns No
Q4
1 · Guesser asks
Is it naturally an anatomical body part, organ, or tissue of an animal (as opposed to a secretion, product, or processed material)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it naturally an anatomical body part, organ, or tissue of an animal (as opposed to a secretion, product, or processed material)?"}}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 an anatomical structure of the periorbital region.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The PubMed record identifies a review of “The biology, structure, and function of eyebrow hair” and indexes eyebrows under anatomy and histology, growth and development, and physiology.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns Yes
Q5
1 · Guesser asks
Is this body part naturally found in human beings?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is this body part naturally found in human beings?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The NIH describes the eyebrow as “the arch of hair on the brow” and discusses its anatomical parts and relationship to the eye.
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)
2 · Answer check returns Yes
Q6
1 · Guesser asks
Is it normally located entirely inside the body (an internal organ, bone, or internal tissue), rather than on the external surface?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally located entirely inside the body (an internal organ, bone, or internal tissue), rather than on the external surface?"}}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)
Source summary (model-reported)
The male eyebrow sits along the supraorbital ridge and has a flat contour. The study measured the eyebrow's location relative to the pupil, lateral canthus, and supraorbital rim.
Open pubmed.ncbi.nlm.nih.gov (opens in a new tab) 2 · Answer check returns No
Q7
1 · Guesser asks
Is it located on the head or neck area?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located on the head or neck area?"}}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 described within the anatomy of the periorbital region.
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The male eyebrow sits along the supraorbital ridge. The study analyzes the eyebrow's location relative to the eye and supraorbital rim.
Open europepmc.org (opens in a new tab) 2 · Answer check returns Yes
Q8
1 · Guesser asks
Is it primarily a sensory organ or dedicated sensory receptor (such as an eye, ear, or nose)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily a sensory organ or dedicated sensory receptor (such as an eye, ear, or nose)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The accessory visual structures ... are the protecting and supporting structures ... 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, but they are also important to human communication and facial expressions.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
Eyebrows act as a barrier, diverting moisture away from the eyes toward the sides of the face ... 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 ... nonverbal communication.
Open britannica.com (opens in a new tab) 2 · Answer check returns No
Q9
1 · Guesser asks
Is it composed of or does it consist of hair?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it composed of or does it consist of hair?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
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 NIH Elements of Morphology page distinguishes the brow as soft tissue and defines the eyebrow as “the arch of hair on the brow.”
Open elementsofmorphology.nih.gov (opens in a new tab)Source summary (model-reported)
The page describes the eyebrow as “an area of thick, short hairs above the eye.”
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns Yes
Q10
1 · Guesser asks
Is it facial hair typically growing on the lower part of the face, such as a beard, mustache, or sideburns?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it facial hair typically growing on the lower part of the face, such as a beard, mustache, or sideburns?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
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)Source summary (model-reported)
Britannica describes sideburns as a style of facial hair that grows down the cheeks in front of the ears.
Open britannica.com (opens in a new tab)Source summary (model-reported)
Merriam-Webster identifies a moustache as hair growing on the human upper lip and describes side-whiskers as continuations of the hairline in front of the ears.
Open merriam-webster.com (opens in a new tab) 2 · Answer check returns No
Q11
1 · Guesser asks
Is it located directly adjacent to or associated with the eyes (such as eyebrows or eyelashes)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located directly adjacent to or associated with the eyes (such as eyebrows or eyelashes)?"}}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)Your eyebrows are the lines of hair that grow above your eyes.Open collinsdictionary.com (opens in a new tab)
2 · Answer check returns Yes
Q12
1 · Guesser asks
Does it grow along the edge or margin of the eyelids?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it grow along the edge or margin of the eyelids?"}}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.Open elementsofmorphology.nih.gov (opens in a new tab)
The male eyebrow sits along the supraorbital ridge...Open europepmc.org (opens in a new tab)
2 · Answer check returns No
G
1 · Guesser guessesNot counted
eyebrow
The strip of hair growing above the eye socket on the face of humans and other mammals.
Validator rationale The proposal identifies the eyebrow as the strip of hair above the eye, explicitly including the human eyebrow targeted here.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"The strip of hair growing above the eye socket on the face of humans and other mammals.","name":"eyebrow","question":null}} 2 · Validator returns Yes