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
- 14
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 3m 25s
- Round cost
- $0.1369 All 15 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.
3 of 14 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 something created or manufactured by humans?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it something created or manufactured by humans?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The leading theory of the Moon's origin is that a Mars-sized body collided with Earth about 4.5 billion years ago. The resulting debris from both Earth and the impactor accumulated to form our natural satellite.Open solarsystem.nasa.gov (opens in a new tab)
The Moon is Earth's only natural satellite. The Moon likely formed after a Mars-sized body collided with Earth several billion years ago. The resulting debris from both Earth and the impactor accumulated to form our natural satellite.Open science.nasa.gov (opens in a new tab)
2 · Answer check returns No
Q2
1 · Guesser asks
Is it a living organism, or part of a living organism?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it 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.
The Moon is Earth's only natural satellite. The many missions that have explored the Moon have found no evidence to suggest it has its own living things.Open science.nasa.gov (opens in a new tab)
Earth's only natural satellite is simply called "the Moon" ... The many missions that have explored the Moon have found no evidence to suggest it has its own living things.Open solarsystem.nasa.gov (opens in a new tab)
2 · Answer check returns No
Q3
1 · Guesser asks
Is it a physical object, material substance, or geographical/astronomical feature (rather than a phenomenon, force, energy, or concept)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a physical object, material substance, or geographical/astronomical feature (rather than a phenomenon, force, energy, or concept)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Naturally-formed bodies that orbit planets are called moons, or planetary satellites. ... They are generally solid bodies.Open science.nasa.gov (opens in a new tab)
The Moon is Earth's only natural satellite. It goes around the Earth at a distance of about 239,000 miles (385,000 kilometers).Open science.nasa.gov (opens in a new tab)
2 · Answer check returns Yes
Q4
1 · Guesser asks
Is it a type of material or substance (such as a chemical element, compound, mineral, rock, liquid, or gas)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a type of material or substance (such as a chemical element, compound, mineral, rock, liquid, or gas)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The Moon is Earth's only natural satellite. ... The mantle extends from the top of the partially molten layer to the bottom of the Moon's crust. It is most likely made of minerals like olivine and pyroxene, which are made up of magnesium, iron, silicon, and oxygen atoms.
Open solarsystem.nasa.gov (opens in a new tab)Source summary (model-reported)
The Moon is a rocky body that orbits planet Earth. ... This shared formation explains why Earth and the Moon are made up of many of the same elements.
Open asc-csa.gc.ca (opens in a new tab) 2 · Answer check returns No
Q5
1 · Guesser asks
Is it located on Earth (such as a geographical feature, landform, body of water, or natural structure on Earth)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located on Earth (such as a geographical feature, landform, body of water, or natural structure on Earth)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
NASA states that the Moon is Earth's only natural satellite and goes around Earth at a distance of about 239,000 miles (385,000 kilometers).
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
Britannica describes the Moon as Earth's sole natural satellite and gives its mean distance from Earth as approximately 384,400 km.
Open mendel-qa.dev-ext.britannica.com (opens in a new tab) 2 · Answer check returns No
Q6
1 · Guesser asks
Is it an astronomical object or celestial structure located in outer space?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it an astronomical object or celestial structure located in outer space?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The Moon is Earth's only natural satellite. It goes around the Earth at a distance of about 239,000 miles (385,000 kilometers). It is the only celestial body beyond Earth – so far – visited by human beings.
Open solarsystem.nasa.gov (opens in a new tab)Source summary (model-reported)
The Moon is the only natural satellite of Earth. The Moon is the brightest celestial object in Earth's night sky.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns Yes
Q7
1 · Guesser asks
Is it a specific, individually named celestial body or system (rather than a general class or type of astronomical object)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a specific, individually named celestial body or system (rather than a general class or type of astronomical object)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Earth's only natural satellite is simply called "the Moon" ... In Latin, the Moon is called Luna.Open solarsystem.nasa.gov (opens in a new tab)
Earth I (Moon) ... is known, in English, as the Moon. The Moon is known as Luna in Italian, Latin, and Spanish...Open planetarynames.wr.usgs.gov (opens in a new tab)
2 · Answer check returns Yes
Q8
1 · Guesser asks
Is it located within our Solar System?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it located within our Solar System?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
Within the Solar System, it is larger and more massive than any known dwarf planet, and the fifth-largest and fifth–most massive moon.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
The Moon is a rocky body that orbits planet Earth. ... Other than Earth, the Moon is the most explored celestial body in our solar system.
Open asc-csa.gc.ca (opens in a new tab) 2 · Answer check returns Yes
Q9
1 · Guesser asks
Is it a planet or a dwarf planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a planet or a dwarf planet?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The IAU identifies Earth's natural satellite as “the Moon.” It defines a planet of the Solar System as a celestial body in orbit around the Sun that is nearly round and has cleared its orbital neighbourhood.
Open iau.org (opens in a new tab)Source summary (model-reported)
Naturally-formed bodies that orbit planets are called moons, or planetary satellites. NASA separately discusses moons orbiting planets and dwarf planets, including Earth's Moon.
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
Moons are also called planetary satellites; they orbit planets and dwarf planets. The page distinguishes moons from the planets and dwarf planets they orbit.
Open science.nasa.gov (opens in a new tab) 2 · Answer check returns No
Q10
1 · Guesser asks
Is it a natural satellite (a moon) that orbits a planet or dwarf planet?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a natural satellite (a moon) that orbits a planet or dwarf planet?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Naturally-formed bodies that orbit planets are called moons, or planetary satellites. ... Our solar system has hundreds of known moons orbiting planets and dwarf planets.Open solarsystem.nasa.gov (opens in a new tab)
Earth and the moon are examples of natural satellites. ... the moon is a satellite because it orbits Earth.Open nasa.gov (opens in a new tab)
A natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body. ... Earth has one large natural satellite, known as the Moon.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q11
1 · Guesser asks
Does it orbit either Jupiter or Saturn?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it orbit either Jupiter or Saturn?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The Moon makes a complete orbit around Earth in 27 Earth days.Open solarsystem.nasa.gov (opens in a new tab)
The Moon is Earth's only natural satellite. It goes around the Earth at a distance of about 239,000 miles (385,000 kilometers).Open science.nasa.gov (opens in a new tab)
2 · Answer check returns No
Q12
1 · Guesser asks
Does it orbit either Uranus or Neptune?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it orbit either Uranus or Neptune?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
NASA states that the Moon is Earth's only natural satellite, goes around Earth at about 239,000 miles (385,000 kilometers), and makes a complete orbit around Earth in 27 Earth days.
Open science.nasa.gov (opens in a new tab)Source summary (model-reported)
NASA identifies Earth's Moon as Earth's only natural satellite and states that the Moon makes a complete orbit around Earth in 27 Earth days.
Open solarsystem.nasa.gov (opens in a new tab) 2 · Answer check returns No
Q13
1 · Guesser asks
Does it orbit one of the inner rocky planets (Earth or Mars)?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it orbit one of the inner rocky planets (Earth or Mars)?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
The Moon makes a complete orbit around Earth in 27 Earth days and rotates or spins at that same rate, or in that same amount of time.Open solarsystem.nasa.gov (opens in a new tab)
Orbital parameters (for orbit about the Earth)Open nssdc.gsfc.nasa.gov (opens in a new tab)
2 · Answer check returns Yes
Q14
1 · Guesser asks
Does it orbit Mars?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it orbit Mars?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Earth's only natural satellite is simply called "the Moon" ... The Moon makes a complete orbit around Earth in 27 Earth days.Open solarsystem.nasa.gov (opens in a new tab)
The Moon is a rocky body that orbits planet Earth. The Moon completes one orbit around Earth in 27.3 days.Open asc-csa.gc.ca (opens in a new tab)
2 · Answer check returns No
G
1 · Guesser guessesNot counted
The Moon
Earth's only natural satellite.
Validator rationale “The Moon” and “Earth's only natural satellite” identify the specific celestial body targeted, not the general class of natural satellites.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"Earth's only natural satellite.","name":"The Moon","question":null}} 2 · Validator returns Yes