Record 03009d90db194c02812623c9df494d5a

FAIL

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

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

finish_reason: stop · tokens in/out: 325/565 · cost: $0.000388 · latency: 11229.6 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 03009d90

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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 908 chars · 325 tokens in

At 8:00, Elena took the blue basket and placed it in the workshop. At 8:01, Tamsin moved the blue basket into the front office. At 8:02, Nolan brought the blue basket over to the cafeteria. At 8:03, she carried the blue basket to the greenhouse. At 8:04, Elena carried the blue basket to the atrium. At 8:05, she carried the blue basket to the mail room. At 8:06, Nolan carried the blue basket to the greenhouse. At 8:07, he brought the blue basket over to the basement. At 8:08, he moved the blue basket into the mail room. At 8:09, he moved the blue basket into the greenhouse. At 8:10, Tamsin carried the worn box to the workshop. At 8:11, she took the worn box and placed it in the wine cellar. At 8:12, she reorganized some papers on the desk. At 8:13, she refilled a cup of coffee.

Where does Tamsin believe the blue basket is? Answer with only the location name (or 'unknown' if they have no belief).

Response 565 tokens out · finish: stop

greenhouse

Reasoning 1,929 chars

Model reasoning

We need to infer Tamsin's belief about location of blue basket based on her knowledge (what she observed). Timeline:

8:00 Elena took blue basket to workshop.
8:01 Tamsin moved blue basket into front office. So Tamsin sees moving it to front office.
8:02 Nolan brought blue basket to cafeteria. Tamsin not present? Not indicated. She may not know.
8:03 she (who? "she" refers to who? At 8:03, "she carried the blue basket to the greenhouse." Who is "she"? The previous subject was Nolan at 8:02. But "she" could refer to Nolan? Nolan is male? Actually Nolan is likely male, but pronoun "she" suggests it's not Nolan. Could be Tamsin? Let's parse: 8:02 Nolan brought the blue basket over to the cafeteria. 8:03, she carried the blue basket to the greenhouse. Who is "she"? Could be Tamsin (since she is female). The narrative likely alternates pronouns: after Nolan, "she" could be Tamsin. But we need to see pattern: 8:04 Elena carried... 8:05 she (Elena?) Actually 8:04 Elena carried... 8:05 she (Elena) carried... So pronoun refers to same subject as previous line if same gender? At 8:04 Elena... 8:05 she (Elena). So pronoun refers to same subject. At 8:02 Nolan (male). 8:03 she (should be Nolan? but Nolan is male, so pronoun mismatch). So maybe "she" refers to Tamsin, who is female, and she moved after Nolan? But timeline: Tamsin moved at 8:01, then Nolan at 8:02, then Tamsin again at 8:03? Could be plausible. So Tamsin moves again at 8:03 to greenhouse. Then 8:04 Elena... 8:05 Elena... 8:06 Nolan... 8:07 he... 8:08 he... 8:09 he... So Tamsin's actions after 8:01: at 8:03 she carried to greenhouse, at 8:10 she carried worn box, etc. So Tamsin's last interaction with blue basket is at 8:03 moving it to greenhouse. She does not see later moves by Nolan (8:06-9). So her belief is that after 8:03, the basket is in greenhouse. She hasn't observed later moves. So answer: greenhouse.

Thus location name: greenhouse.

Realized dims 5

dim	value
context_length	14.0
coreference	1.0
distractors	2.0
entity_state	10.0
temporal	0.0

Latent params 5

param	value
chain_length	10.0
coref_pressure	0.0
distractor_events	2.0
filler_events	2.0
scramble	0.0