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Record 4bea883cbcf144a4987b830e2f26e582

FAIL

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

✕FAILanswered "loading dock" · model Nemotron 3 Super 120B

finish_reason: stop · tokens in/out: 252/1170 · cost: $0.000547 · latency: 7635.7 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 4bea883c

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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 825 chars · 252 tokens in
At 8:00, Dana took the heavy basket and placed it in the south stairwell. At 8:01, Hana brought the heavy basket over to the atrium. At 8:02, David brought the heavy basket over to the south stairwell. At 8:03, she moved the heavy basket into the loading dock. At 8:04, he moved the heavy basket into the photo studio. At 8:05, he brought the heavy basket over to the cafeteria. At 8:06, he moved the heavy basket into the atrium. At 8:07, he took the heavy basket and placed it in the front office. At 8:08, he moved the red tablet into the front office. At 8:09, he brought the red tablet over to the photo studio. At 8:10, he reorganized some papers on the desk. At 8:11, Dana refilled a cup of coffee.

Where does Hana believe the heavy basket is? Answer with only the location name (or 'unknown' if they have no belief).
Response 1,170 tokens out · finish: stop

loading dock
Reasoning 4,899 chars
Model reasoning
We need to parse scenario: multiple agents moving items; we need to infer what each person believes about location of heavy basket based on their observations/actions. The question: "Where does Hana believe the heavy basket is?" We must answer with location name or unknown.

We need to track knowledge states per agent given actions described. Usually these puzzles assume that when an agent moves something, they know its new location; others may not see unless they are present? Need assumptions: Typically, each statement describes an action performed by a named person at a time. Others may not be aware unless they observed? In such reasoning tasks, we often assume that only the actor knows the location change; others retain previous belief unless they later observe or are told. No communication indicated except actions themselves. So we need to compute Hana's belief after all events up to 8:11.

Let's list events:

- 8:00: Dana took the heavy basket and placed it in the south stairwell.
   => Dana knows basket now in south stairwell. Others? Not specified; presumably they didn't see? Might assume they don't know unless they were there. But maybe default assumption: everyone knows initial location? Not given. Probably start unknown for all? However typical puzzles: initially basket location unknown to all? Or maybe known to be somewhere? Let's think.

Better approach: Track each person's belief based on actions they performed or witnessed. Since only actions are given, we can infer that each person knows the location of items they moved (they placed them). They might also know location of items they observed being moved? If they didn't perform action, they may not know unless they saw someone else move it. There's no explicit observation statements besides the actions themselves. So likely only the actor updates belief.

Thus we need to see Hana's actions: At 8:01, Hana brought the heavy basket over to the atrium. So Hana moved basket to atrium at 8:01. Therefore after that, Hana believes basket is in atrium.

Later events: At 8:02, David brought the heavy basket over to the south stairwell. This is an action by David; Hana did not witness? Not stated. So Hana's belief may stay as she last knew (atrium) unless she later observes something that changes her belief. Did Hana later interact with basket? No further Hana actions concerning basket. She later at 8:11 refilled coffee, unrelated.

Thus Hana's belief remains that basket is in atrium (her last known location). Unless we consider that she might have seen David moving it? Not indicated. So answer: atrium.

Check if any other info could affect: At 8:03, she moved the heavy basket into the loading dock. Who is "she"? Could be Dana? Actually earlier Dana was female; Hana also female. At 8:03, "she moved the heavy basket into the loading dock." Which she? Could be Dana or Hana ambiguous. But given naming, after 8:02 David moved basket to south stairwell. At 8:03, "she moved the heavy basket into the loading dock." Could be Dana (since Dana was last mentioned at 8:00). Or could be Hana again. Need to resolve pronoun.

Let's examine timeline:

8:00 Dana (female) placed basket in south stairwell.
8:01 Hana brought basket to atrium.
8:02 David brought basket to south stairwell.
8:03 she moved basket into loading dock.
8:04 he moved basket into photo studio.
8:05 he brought basket to cafeteria.
8:06 he moved basket into atrium.
8:07 he took basket and placed it in front office.
8:08 he moved red tablet into front office.
8:09 he brought red tablet to photo studio.
8:10 he reorganized papers.
8:11 Dana refilled coffee.

Pronouns: After 8:02 David (male) moved basket to south stairwell. Then 8:03 "she moved..." Likely refers to the last female mentioned: Hana (since Dana was earlier but Hana is more recent female). However Dana also female but last female before 8:03 is Hana at 8:01. So "she" likely Hana. Then 8:04 "he moved..." likely David (male). 8:05 "he brought..." could be David again. 8:06 "he moved..." David. 8:07 "he took..." David. 8:08 "he moved red tablet..." David. 8:09 "he brought red tablet..." David. 8:10 "he reorganized..." David. 8:11 Dana refills coffee.

Thus Hana's actions: 8:01 brought basket to atrium; 8:03 she moved basket into loading dock. So Hana moved basket twice: first to atrium, then to loading dock. After 8:03, Hana knows basket is in loading dock. Later actions by David etc. Hana does not have further basket interactions. So Hana's belief after all events: she last moved basket to loading dock at 8:03, and hasn't seen any further moves (unless she observed David moving it later, but not stated). So Hana believes basket is in loading dock.

Thus answer: loading dock.

Check if any other nuance: At 8:06 David moved basket into atrium. If Hana observed that? Not stated. So she still believes loading dock.

Thus final answer: loading dock.
Realized dims 5
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context_length12.0
coreference1.0
distractors2.0
entity_state8.0
temporal0.0
Latent params 5
paramvalue
chain_length8.0
coref_pressure0.0
distractor_events2.0
filler_events2.0
scramble0.0