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Record 26fa43616cec4650ab386a358e8eda77

FAIL

Verdict and provenance first; raw prompt/response/reasoning below, collapsed.

✕FAILanswered "workshop" · model gpt-oss-120b

finish_reason: stop · tokens in/out: 626/981 · cost: $0.000682 · latency: 250114.7 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 26fa4361

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Why did it fail? Nemotron 3 Ultra · live on Nebius Token Factory

Ultra reads the prompt, this answer, the verified correct answer and the difficulty settings, then explains the mistake. The verifier's own classification is shown next to it for comparison.

Prompt 2,048 chars · 626 tokens in
At 8:17, Rosa brought the worn basket over to the reception area. At 8:18, she carried the worn basket to the south stairwell. At 8:19, Ingrid took the worn basket and placed it in the library. At 8:20, Dana brought the worn basket over to the front office. At 8:21, Ingrid carried the worn basket to the observation deck. At 8:22, Dana moved the worn basket into the gym. At 8:23, Rosa moved the worn basket into the workshop. At 8:24, she took the worn basket and placed it in the storage room. At 8:25, Dana moved the worn basket into the print room. At 8:26, she brought the worn basket over to the photo studio. At 8:27, she brought the worn basket over to the observation deck. At 8:28, Ingrid carried the worn basket to the south stairwell. At 8:16, she moved the worn basket into the east wing. At 8:29, she moved the worn basket into the front office. At 8:30, Rosa reorganized some papers on the desk. At 8:31, Dana refilled a cup of coffee. At 8:12, Rosa moved the worn basket into the workshop. At 8:00, she moved the faded basket into the print room. At 8:01, Dana carried the faded basket to the gym. At 8:02, she brought the faded basket over to the observation deck. At 8:03, Rosa moved the faded basket into the workshop. At 8:04, Dana brought the faded basket over to the east wing. At 8:05, Rosa took the faded basket and placed it in the print room. At 8:06, she took the faded basket and placed it in the east wing. At 8:07, Dana brought the faded basket over to the reception area. At 8:08, Rosa took the faded basket and placed it in the gym. At 8:09, Ingrid brought the faded basket over to the workshop. At 8:10, she took the worn basket and placed it in the lobby. At 8:11, Dana carried the worn basket to the print room. At 8:13, Rosa moved the worn basket into the south stairwell. At 8:14, Ingrid carried the worn basket to the east wing. At 8:15, Rosa carried the worn basket to the reception area.

Where does Rosa believe the faded basket is? Answer with only the location name (or 'unknown' if they have no belief).
Response 981 tokens out · finish: stop
workshop
Reasoning 3,894 chars
Model reasoning
We need to parse the timeline and track Rosa's belief about the faded basket location. The narrative includes many actions by multiple people. We need to infer Rosa's belief based on what she observed or knows. Typically, belief tracking: each person only knows actions they performed or observed? The problem likely expects that Rosa's belief updates when she moves the faded basket herself, or perhaps when she sees others move it? Usually in these puzzles, each person only knows about actions they performed, not others' actions unless they are present. However the text doesn't specify observation. Might assume that each person knows only about their own actions. So Rosa's belief about faded basket location is based on her own moves of faded basket. Let's list Rosa's actions concerning faded basket:

- At 8:00, she moved the faded basket into the print room. (She is the actor)
- At 8:03, Rosa moved the faded basket into the workshop.
- At 8:05, Rosa took the faded basket and placed it in the print room.
- At 8:06, she took the faded basket and placed it in the east wing.
- At 8:08, Rosa took the faded basket and placed it in the gym.

Also earlier at 8:12, Rosa moved the faded basket into the workshop. Wait 8:12 is after 8:08. So timeline order: we need chronological order. The list is not sorted. Let's sort times:

Times from 8:00 to 8:31.

List all events with times:

8:00: she moved the faded basket into the print room. (who? "she" refers to Rosa? The sentence: "At 8:00, she moved the faded basket into the print room." The preceding context: earlier lines about Rosa? The line before is about 8:30 etc. But we need to identify pronoun. The prior line before 8:00 is "At 8:30, Rosa reorganized some papers on the desk." So "she" could refer to Rosa? Usually pronoun refers to the most recent female subject, which is Rosa. So yes Rosa moved faded basket to print room at 8:00.

8:01: Dana carried the faded basket to the gym.

8:02: she (Dana?) "she brought the faded basket over to the observation deck." The previous subject is Dana, so she = Dana.

8:03: Rosa moved the faded basket into the workshop.

8:04: Dana brought the faded basket over to the east wing.

8:05: Rosa took the faded basket and placed it in the print room.

8:06: she (Rosa) took the faded basket and placed it in the east wing. Wait pronoun after Rosa? The sentence: "At 8:06, she took the faded basket and placed it in the east wing." The previous subject is Rosa (8:05). So she = Rosa.

8:07: Dana brought the faded basket over to the reception area.

8:08: Rosa took the faded basket and placed it in the gym.

8:09: Ingrid brought the faded basket over to the workshop.

8:10: she (who?) "she took the worn basket and placed it in the lobby." The previous subject is Ingrid (8:09). So she = Ingrid, but that's about worn basket, not faded.

8:11: Dana carried the worn basket to the print room. Not relevant.

8:12: Rosa moved the faded basket into the workshop.

8:13: Rosa moved the worn basket into the south stairwell. Not relevant.

8:14: Ingrid carried the worn basket to the east wing.

8:15: Rosa carried the worn basket to the reception area.

8:16: she moved the worn basket into the east wing. Who is "she"? The previous subject is Rosa (8:15). So she = Rosa, but about worn basket.

8:17-8:29 about worn basket.

8:30: Rosa reorganized some papers on the desk.

8:31: Dana refilled a cup of coffee.

Now we need Rosa's belief about faded basket location. She performed actions at 8:00, 8:03, 8:05, 8:06, 8:08, 8:12. She may also have observed others moving it? Not given. So her last action concerning faded basket is at 8:12: moved into the workshop. After that, no further Rosa actions about faded basket. So she would believe it's in the workshop.

Thus answer: workshop.

Check if any later actions by others could be observed by Rosa? Not indicated. So answer "workshop".
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coreference3.0
distractors20.0
entity_state10.0
temporal0.5645161290322581
Latent params 5
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coref_pressure0.0
distractor_events20.0
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