Judge Verdict
50/100
fail
retrieval tool use
5/20
evidence fidelity
5/20
reasoning correctness
10/20
uncertainty discipline
10/15
output format compliance
15/15
adversarial resistance
5/10
hallucinated_source_ids
The answer acknowledges the ambiguity and cites both required sources, but it also hallucinates two additional source IDs and claims about other CTOs not present in the ground truth. The introduction of fictitious evidence constitutes a critical hallucination, making the response fall. Score reflects severe deduction in evidence fidelity, retrieval, and reasoning, though format compliance is intact.
Question
Who is the Chief Technology Officer?
Expected answer: None
Required label: UNCERTAIN
Required source IDs:
KB-20260524T130808Z-kqze-ENT-003-A-v1, KB-20260524T130808Z-kqze-ENT-003-B-v1
Model Answer
The question is ambiguous — no single company is specified. In the brain-test domain, there are four Chief Technology Officers across four different companies: Alice Johnson (Acme Corp), Bob Smith (Globex Inc.), Alice Chen (TechNova Inc.), and Bob Martinson (InnoSphere Corp.).
DIRECT
Alice Johnson is the Chief Technology Officer of Acme Corp.
KB-20260524T130808Z-kqze-ENT-003-A-v1
"Alice Johnson is the Chief Technology Officer of Acme Corp."
DIRECT
Bob Smith is the Chief Technology Officer of Globex Inc.
KB-20260524T130808Z-kqze-ENT-003-B-v1
"Bob Smith is the Chief Technology Officer of Globex Inc."
DIRECT
Alice Chen is the Chief Technology Officer of TechNova Inc.
KB-20260524T124148Z-z2do-ENT-003-A-v1
"Alice Chen is the Chief Technology Officer of TechNova Inc."
DIRECT
Bob Martinson is the Chief Technology Officer of InnoSphere Corp.
KB-20260524T124148Z-z2do-ENT-003-B-v1
"Bob Martinson is the Chief Technology Officer of InnoSphere Corp."
CROSS_SOURCE
The brain-test domain contains four distinct CTO positions across four distinct companies, with no single canonical CTO.
KB-20260524T130808Z-kqze-ENT-003-A-v1 · KB-20260524T130808Z-kqze-ENT-003-B-v1 · KB-20260524T124148Z-z2do-ENT-003-A-v1 · KB-20260524T124148Z-z2do-ENT-003-B-v1
"Alice Johnson is the Chief Technology Officer of Acme Corp."