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
- 5m 56s
- Round cost
- $0.0819 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":"EAQCORIU"}Valid replies are shown in the required format. Rejected replies are shown separately, without provider or call IDs.
1 of 15 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 living organism, such as an animal, plant, fungus, or microbe?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a living organism, such as an animal, plant, fungus, or microbe?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Some animals produce non-living structures external to their bodies that are critical for survival ... or the webs of spiders.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
A spider web ... is a structure created by a spider out of proteinaceous spider silk, generally meant to catch its prey.Open en.wikipedia.org (opens in a new tab)
Spiders make their webs from silk, a natural fibre made of protein.Open nhm.ac.uk (opens in a new tab)
2 · Answer check returns No
Q2
1 · Guesser asks
Is it a human-made manufactured object?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a human-made manufactured object?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The study describes spider webs as "natural web geometry" and states that spiders "produce, build, and tune highly functional silks and large-scale web structures." It also says the spider's construction method uses only silk as material.
Open pnas.org (opens in a new tab)The Natural History Museum states: "Spiders make their webs from silk, a natural fibre made of protein." It also describes a spider spinning silk to make its web.Open nhm.ac.uk (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Does it consist of physical matter with mass and volume?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it consist of physical matter with mass and volume?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Spider web is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.Open en.wikipedia.org (opens in a new tab)
Spiders make their webs from silk, a natural fibre made of protein. ... The silk is liquid when it's inside the spider.Open nhm.ac.uk (opens in a new tab)
A combination of elongation flow and wall shear within the gland creates tensile strain that induces β-sheet transitions in silk proteins as they pass through the fluid-to-solid transition zone.Open pmc.ncbi.nlm.nih.gov (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Is it naturally found on Earth (as opposed to existing only in outer space)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it naturally found on Earth (as opposed to existing only in outer space)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Spider webs ... are ubiquitous in many natural and anthropogenic environments, found in an array of microhabitats worldwide ... We sampled spider webs from two locations in Western Australia ... spider webs found in both natural and artificial environments.
Open pmc.ncbi.nlm.nih.gov (opens in a new tab)Source summary (model-reported)
Spiders make their webs from silk, a natural fibre made of protein. ... British spider webs can be grouped into seven broad types based on their architecture.
Open nhm.ac.uk (opens in a new tab) 2 · Answer check returns Yes
Q5
1 · Guesser asks
Is it a type of substance or material (such as water, rock, mineral, gas) rather than a large geographic feature or specific place?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a type of substance or material (such as water, rock, mineral, gas) rather than a large geographic feature or specific place?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A spider's web is “a structure like a net of sticky silk threads made by a spider for catching insects.”Open dictionary.cambridge.org (opens in a new tab)
Merriam-Webster defines spiderweb as “the network of silken thread spun by most spiders and used as a resting place and as a trap for small prey.”Open merriam-webster.com (opens in a new tab)
2 · Answer check returns No
Q6
1 · Guesser asks
Is it a geographical feature or natural landform or water body, such as a mountain, valley, river, lake, ocean, island, desert, canyon, glacier, or cave?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a geographical feature or natural landform or water body, such as a mountain, valley, river, lake, ocean, island, desert, canyon, glacier, or cave?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Spiders make their webs from silk, a natural fibre made of protein. ... A spider spinning silk to make its web, pulling the thread out with its hind leg.Open nhm.ac.uk (opens in a new tab)
Source summary (model-reported)
The study describes spider webs as structures with geometry, fibers, and nodes, and examines how spiders build and reinforce the web structure over time.
Open pnas.org (opens in a new tab)Source summary (model-reported)
The article describes a spider web that spans rivers and lakes, with anchor threads extending between riverbanks. The rivers and lakes are locations over which the web is built, not the web itself.
Open nationalgeographic.com (opens in a new tab) 2 · Answer check returns No
Q7
1 · Guesser asks
Is it a part, organ, tissue, fluid, or product of an animal or human body?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a part, organ, tissue, fluid, or product of an animal or human body?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
A spider's web is defined as “a structure like a net of sticky silk threads made by a spider for catching insects.”
Open dictionary.cambridge.org (opens in a new tab)Source summary (model-reported)
The Natural History Museum states that spiders make their webs from silk, and describes spiders spinning silk to make their webs. It also identifies spinnerets as the spider's silk-spinning organs.
Open nhm.ac.uk (opens in a new tab)Source summary (model-reported)
Britannica describes web building as drawing silk from the spider's spinnerets and weaving strands into traps; it states that webs are instinctively constructed by spiders.
Open britannica.com (opens in a new tab) 2 · Answer check returns Yes
Q8
1 · Guesser asks
Is it normally located inside the human body as part of its anatomy?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally located inside the human body as part of its anatomy?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Spiders build webs all year round, but autumn is the best time to spot them outdoors. ... They're commonly found on the outside of window frames. ... [Some webs] are often found in houses.
Open nhm.ac.uk (opens in a new tab)Source summary (model-reported)
A spider web, spiderweb, spider's web, cobweb or even just web ... is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
Arachnoid trabeculae refer to the network of fibrous septa resembling spider webs that are present within the subarachnoid space. They serve to connect the outer arachnoid membrane with the inner pia mater.
Open imaios.com (opens in a new tab) 2 · Answer check returns No
Q9
1 · Guesser asks
Is it something produced by or part of the human body, such as hair, nail, tooth, or milk?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it something produced by or part of the human body, such as hair, nail, tooth, or milk?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
A spider web ... is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
The supplied subject description identifies the target as the assembled web, not spider silk as a material, the spider itself, or a body part.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns No
Q10
1 · Guesser asks
Is it a structural body part of an animal (such as bone, feather, shell, horn, or tooth) rather than a secretion or laid product like an egg, honey, milk, silk, or web?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a structural body part of an animal (such as bone, feather, shell, horn, or tooth) rather than a secretion or laid product like an egg, honey, milk, silk, or web?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Spiders make their webs from silk, a natural fibre made of protein. Spiders have structures called spinnerets on their abdomen, usually on the underside to the rear. These are the silk-spinning organs.
Open nhm.ac.uk (opens in a new tab)Source summary (model-reported)
Many web spiders construct silk sheets in vegetation, sometimes one above the other, and often add anchor threads, which trip unsuspecting insects. To begin orb-web construction, the spider releases a silk thread that is carried by wind.
Open britannica.com (opens in a new tab) 2 · Answer check returns No
Q11
1 · Guesser asks
Is it produced by an insect, arachnid, or other arthropod?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it produced by an insect, arachnid, or other arthropod?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The Natural History Museum states that spiders make their webs from silk and describes a spider spinning silk to make its web.
Open nhm.ac.uk (opens in a new tab)Source summary (model-reported)
Britannica identifies spiders as arachnids and explains that spiders producing silk construct webs in various forms, including orb-shaped webs.
Open britannica.com (opens in a new tab) 2 · Answer check returns Yes
Q12
1 · Guesser asks
Is it a built structure such as a nest, hive, mound, cocoon, or web, rather than a substance like honey or silk fiber itself?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a built structure such as a nest, hive, mound, cocoon, or web, rather than a substance like honey or silk fiber itself?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
“spiderweb” is defined as “the network of silken thread spun by most spiders and used as a resting place and as a trap for small prey.”
Open merriam-webster.com (opens in a new tab)Source summary (model-reported)
Spiders construct webs in forms including tube-, funnel-, sheet-, and orb-shaped webs. The spider constructs the web’s framework by creating spokes and adds sticky silk to complete it.
Open britannica.com (opens in a new tab)Source summary (model-reported)
Spiders make their webs from silk, described as a natural fibre made of protein. The source separately describes silk as the material and webs as what spiders make from it.
Open nhm.ac.uk (opens in a new tab) 2 · Answer check returns Yes
Q13
1 · Guesser asks
Is it primarily made of silk or silk-like protein fiber?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily made of silk or silk-like protein fiber?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The source states that spider webs are made from silk, and that silk is made from proteins. It also notes that different silk glands produce strands for web frames, sticky strands, and other purposes.
Open imb.uq.edu.au (opens in a new tab)Source summary (model-reported)
The source describes orb-web frames and radii as made of silk, with additional silk types used for auxiliary spirals, capture threads, and attachment cement. It states that spider silk primarily consists of proteins.
Open pmc.ncbi.nlm.nih.gov (opens in a new tab)Source summary (model-reported)
The source states that spider silk belongs to the fibrous-protein group and is made up of elongated filamentous chains of fibroin protein.
Open ebi.ac.uk (opens in a new tab) 2 · Answer check returns Yes
Q14
1 · Guesser asks
Is it made by a spider?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it made by a spider?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A spider web, spiderweb, spider's web, cobweb or even just web ... is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.Open en.wikipedia.org (opens in a new tab)
Source summary (model-reported)
Spiders use their silk for several purposes, including web-building. ... The typical orb weaver spider ... will build a planar orb web.
Open smithsonianmag.com (opens in a new tab) 2 · Answer check returns Yes
Q15
1 · Guesser asks
Is its primary function to trap or catch prey for the spider to eat?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its primary function to trap or catch prey for the spider to eat?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Many spiders build webs specifically to trap and catch insects to eat. However, not all spiders catch their prey in webs, and some do not build webs at all.Open en.wikipedia.org (opens in a new tab)
Source summary (model-reported)
The British Arachnological Society describes the most familiar use of spider webs as the production of “silken snares and traps for prey,” and gives examples where insects caught in webs are subsequently eaten by the spider.
Open britishspiders.org.uk (opens in a new tab) 2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Spider web
silk web built by spiders to trap prey
Validator rationale The proposal identifies a spider web as an assembled silk structure built by spiders, matching the target kind and its function without violating any restrictions.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"silk web built by spiders to trap prey","name":"Spider web","question":null}} 2 · Validator returns Yes