Run: 2026-05-01-01KQHSY1BKY6F27YXQWWSD6S4P

Run Details

Model:: Grok 4.20 (Reasoning)
Test:: Data extraction
Scenario:: Contextual pronoun
Duration:: 6.2s
Cost:: $0.001510
Provider:: xAI

Evaluation summary

Score	Evaluator	Details Link
Fail	Matches text	(details)
Pass	Matches Regex	(details)
no eval	Overall

Model input

User/Human

Who does "he" refer to in the last sentence? Only return the name.

Tom and Jerry were playing in the yard. Spike, the dog, was watching them from his kennel. Suddenly, he started barking loudly.

Model response

Spike

The pronoun "he" in the final sentence resolves to "Spike" via standard anaphora resolution: the immediately preceding clause introduces Spike as the sole masculine singular entity capable of the action (a dog barking from a kennel), while Tom and Jerry function as the plural "them" being watched. No other referent is semantically or syntactically available.

Evaluation details

Result	Evaluator	Details	Meta Data
Fail	Matches text	Case sensitive: Spike	n/a
Pass	Matches Regex	/\bSpike\b/	n/a
no eval