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
- 20
- Outcome
- Solved
- Format errors
- No errors
- Duration
- 4m 55s
- Round cost
- $0.3192 All 21 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.
6 of 20 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 physical object or substance?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it a physical object or substance?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A door handle is a small round object or a lever that is attached to a door and is used for opening and closing it.Open collinsdictionary.com (opens in a new tab)
A door handle is the handle used to open and close a door. Door handles can turn, but they can also be fixed in place, like a vertical or horizontal bar.Open dictionary.com (opens in a new tab)
2 · Answer check returns Yes
Q2
1 · Guesser asks
Is it human-made?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it human-made?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A door handle or doorknob is a handle used to open or close a door.Open en.wikipedia.org (opens in a new tab)
Source summary (model-reported)
Door hardware essentially refers to a variety of items which you attach to your door to aid with ease of use, security and efficiency. The range includes door handles and other manufactured door accessories.
Open doorfit.co.uk (opens in a new tab) 2 · Answer check returns Yes
Q3
1 · Guesser asks
Is it small enough for an adult to hold in one hand?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it small enough for an adult to hold in one hand?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The source describes a door handle or doorknob as a handle used to open or close a door.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
The source lists ordinary interior door handles with lever lengths of 100 mm, 105 mm, 115 mm, 120 mm, 130 mm, and 134 mm, and door knobs with diameters of 54–60 mm.
Open llcompany.co.uk (opens in a new tab)Source summary (model-reported)
The source gives dimensions for a door handle example as 157 mm wide, 28 mm high, and 51 mm deep, and describes it as designed to provide a firm grip.
Open dimensions.com (opens in a new tab) 2 · Answer check returns Yes
Q4
1 · Guesser asks
Does it require electricity to perform its intended function?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it require electricity to perform its intended function?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
A door handle or doorknob is a handle used to open or close a door. The most common type of door handle is the lever latch or latch door handle... Pushing the handle down rotates the spindle, operating the tubular latch mechanism inside the door, allowing it to be opened.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
The EMH Electromechanical Handle... activates a 2 A DPDT rated output when pushed or pulled... Electrical: 40 mA at rest; 25 mA releasing at 12 or 24 VDC. Pressing the handle activates internal mechanical switches that release the lock.
Open securitron.com (opens in a new tab) 2 · Answer check returns No
Q5
1 · Guesser asks
Is it commonly found in a typical home?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it commonly found in a typical home?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
When it comes to how to choose door handles and knobs, it’s important to consider what entry type is the most appropriate for the door... Privacy door handles... are most commonly used on bathroom and bedroom doors. Passage door hardware sets... are used on doors that do not need to be secured, such as closets and hallways.Open fergusonhome.com (opens in a new tab)
A keyed entry door handle provides a lock and key. This type of door handle is common for bathrooms, bedrooms, front doors, side doors, and back [doors]. Passage door handles... are typically used on closet and basement doors, and other interior doors.Open thespruce.com (opens in a new tab)
Handlesets refer to the large handle typically found on the main entry doors of a home.Open doorhardwarecenter.com (opens in a new tab)
2 · Answer check returns Yes
Q6
1 · Guesser asks
Is it primarily used for preparing, serving, or consuming food or drink?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used for preparing, serving, or consuming food or drink?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
A handle/lever on a backplate ... turns the spindle ... allowing the door to be opened. Pull handles ... are designed for pulling the door open or closed.
Open atlantichandles.com (opens in a new tab)Source summary (model-reported)
This standard door handle has a knob or lock that rotates to operate the latch and the door. ... Door handles can be either attractive door knobs, levers, or handles.
Open thespruce.com (opens in a new tab) 2 · Answer check returns No
Q7
1 · Guesser asks
Is it worn on the body or used mainly for personal grooming or hygiene?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it worn on the body or used mainly for personal grooming or hygiene?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including exterior doors of residential and commercial buildings, internal doors, cupboard doors and vehicle doors.Open en.wikipedia.org (opens in a new tab)
Source summary (model-reported)
The page describes hygiene-related lever handles as solutions for opening doors without touching them, aimed at reducing the spread of bacteria and viruses. It discusses operating the handle with an elbow and antimicrobial surfaces, not personal grooming.
Open hewi.com (opens in a new tab) 2 · Answer check returns No
Q8
1 · Guesser asks
Is it used for writing, drawing, or working with paper?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used for writing, drawing, or working with paper?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The source describes a door handle or doorknob as a handle used to open or close a door, and notes that door handles are found on various types of doors.
Open en.wikipedia.org (opens in a new tab) 2 · Answer check returns No
Q9
1 · Guesser asks
Is it primarily a tool or supply used for household maintenance, repairs, or cleaning?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily a tool or supply used for household maintenance, repairs, or cleaning?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including exterior doors of residential and commercial buildings, internal doors, cupboard doors and vehicle doors.Open en.wikipedia.org (opens in a new tab)
A door handle is the handle used to open and close a door.Open dictionary.com (opens in a new tab)
2 · Answer check returns No
Q10
1 · Guesser asks
Is it primarily used for play, games, or entertainment?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it primarily used for play, games, or entertainment?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
A door handle ... provides a better grip and easier operation when opening and closing the door.
Open hwt-pro.com (opens in a new tab)Source summary (model-reported)
This standard door handle has a knob or lock that rotates to operate the latch and the door.
Open thespruce.com (opens in a new tab) 2 · Answer check returns No
Q11
1 · Guesser asks
Is it made mostly of metal?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it made mostly of metal?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
In the U.S., most door knobs and levers are made from brass. Historically, door knobs and levers have been made from glass, wood, clay, bronze, brass, iron, and steel. Today, most door hardware in the U.S. is brass, but you’ll also find options made from bronze, stainless steel, iron, pewter, and other metals.
Open brennancorp.com (opens in a new tab)Most of the door handles of today are made from iron, bronze, brass, aluminium, wrought iron, steel or stainless steel.Open johndesmond.com (opens in a new tab)
Source summary (model-reported)
Door handles can be made from various materials depending on the style, function, and budget. Common materials listed include brass, stainless steel, zinc alloy, aluminum, bronze, and, in some cases, plastic or PVC.
Open atlantichandles.com (opens in a new tab) 2 · Answer check returns Yes
Q12
1 · Guesser asks
Is it used to secure things or control access, such as by locking or unlocking?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used to secure things or control access, such as by locking or unlocking?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A keyed door lever is a type of door handle that incorporates a locking mechanism, providing an added level of security for your home. These are commonly used on exterior doors or any doors where controlled access is necessary. Unlike a traditional door lever, a keyed door lever requires a key to unlock from the outside.Open schlage.com (opens in a new tab)
Source summary (model-reported)
The glossary describes knob locks and lever handle locks. It states that knob locks are sometimes used as the primary source of security for doors, and that lever handle locks can be locked or unlocked using a key or by operating the inside knob or lever.
Open opwdd.ny.gov (opens in a new tab) 2 · Answer check returns Rather no
Q13
1 · Guesser asks
Is it used as money or to make payments?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it used as money or to make payments?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A door handle or doorknob is a handle used to open or close a door.Open en.wikipedia.org (opens in a new tab)
A door handle is the handle used to open and close a door.Open dictionary.com (opens in a new tab)
2 · Answer check returns No
Q14
1 · Guesser asks
Is it normally a part of a larger object or structure, rather than a standalone item?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it normally a part of a larger object or structure, rather than a standalone item?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Handle (or Door Knob) Part of the door is used to unfasten the door panel and push it closed or pull it open.Open lathamssteeldoors.co.uk (opens in a new tab)
Source summary (model-reported)
Door handles are a part of our homes ... The spindle fits through a square aperture found within the backplate or rosette of the handle ... When you use the handle or turn the door knob, the spindle rotates to operate the latch within the door.
Open doorhandlestore.com (opens in a new tab)Source summary (model-reported)
The installation instructions place the handle on the door, with the spindle passing through the door and the handle fixed in position using screws; turning it operates the latch.
Open emeralddoors.co.uk (opens in a new tab) 2 · Answer check returns Yes
Q15
1 · Guesser asks
Is it typically part of a building or a piece of furniture?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it typically part of a building or a piece of furniture?"}}Oracle evidence1 model-reported source
The Oracle reported these excerpts and URLs. They are not independently checked.
A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including: exterior doors of residential and commercial buildings, internal doors, cupboard doors and vehicle doors.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q16
1 · Guesser asks
Is it commonly fitted to a door, cabinet door, or drawer?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it commonly fitted to a door, cabinet door, or drawer?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including: exterior doors of residential and commercial buildings, internal doors, cupboard doors and vehicle doors. Pull door handles or simply pull handles are U-shaped, and are typically used in kitchens and on drawers.
Open en.wikipedia.org (opens in a new tab)Cabinet pull handles are fitted directly to cabinet doors or drawers, providing both functionality and decorative appeal.Open simplydoorhandles.co.uk (opens in a new tab)
2 · Answer check returns Yes
Q17
1 · Guesser asks
Does it allow an attached panel or door to pivot open and closed?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Does it allow an attached panel or door to pivot open and closed?"}}Oracle evidence2 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A door handle or doorknob is a handle used to open or close a door. ... The door handle has only a lever handle or knob which operates this latch. Pushing the handle down rotates the spindle, operating the tubular latch mechanism inside the door, allowing it to be opened.Open en.wikipedia.org (opens in a new tab)
Hinge is a device system used to position the door relative to the body structure and control the path of the door swing ... Latch is a device employed to maintain the door in a closed position ... with provisions for deliberate release.Open ecfr.gov (opens in a new tab)
2 · Answer check returns Rather no
Q18
1 · Guesser asks
Is it designed to be grasped by hand to open or close a door or drawer?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it designed to be grasped by hand to open or close a door or drawer?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
A door handle is the handle used to open and close a door.Open dictionary.com (opens in a new tab)
A handle is a part of, or an attachment to, an object that allows it to be grasped and manipulated by hand.Open en.wikipedia.org (opens in a new tab)
A door handle or doorknob is a handle used to open or close a door.Open en.wikipedia.org (opens in a new tab)
2 · Answer check returns Yes
Q19
1 · Guesser asks
Is its grip typically rounded and turned to release a door latch?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is its grip typically rounded and turned to release a door latch?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The most common types of door handle are the lever handle and the doorknob. ... Pushing the handle down rotates the spindle, operating the tubular latch mechanism inside the door, allowing it to be opened. ... Pushing the lever or turning the knob pulls the cylinder in the direction of the turn.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
Typically designed with a circular handle, door knobs need to be rotated in either direction ... Lever door handles can be used with a number of different operating mechanisms.
Open hiatt-hardware.com (opens in a new tab)Source summary (model-reported)
As opposed to door knobs, a door lever handle is a straight or sometimes curved handle.
Open yalehome.com (opens in a new tab) 2 · Answer check returns No
Q20
1 · Guesser asks
Is it typically operated by pushing a lever downward to release a door latch?
Recorded Guesser outputRequired JSON format
{"result":{"action":"ASK","description":null,"name":null,"question":"Is it typically operated by pushing a lever downward to release a door latch?"}}Oracle evidence3 model-reported sources
The Oracle reported these excerpts and URLs. They are not independently checked.
Source summary (model-reported)
The most common type of door handle is the lever latch or latch door handle... Pushing the handle down rotates the spindle, operating the tubular latch mechanism inside the door, allowing it to be opened.
Open en.wikipedia.org (opens in a new tab)Source summary (model-reported)
The most common type is the Lever latch door handle on a backplate... When the lever handle is pushed down, the spindle bar... rotates allowing the door to be opened.
Open hiatt-hardware.com (opens in a new tab)Source summary (model-reported)
If the opening action of a door latch cannot be a pushing action, it must be a single downward action, capable of being activated with a single hand.
Open abcb.gov.au (opens in a new tab) 2 · Answer check returns Yes
G
1 · Guesser guessesNot counted
Door handle
A lever-style metal handle pressed downward to release a door's latch.
Validator rationale The proposal identifies a door handle and retains its defining function; the lever style and metal material are acceptable extra specificity.
Recorded Guesser outputRequired JSON format
{"result":{"action":"GUESS","description":"A lever-style metal handle pressed downward to release a door's latch.","name":"Door handle","question":null}} 2 · Validator returns Yes