author
The first Portuguese ships reached China in 1516
judge verdicts (2)
- groundedness 1.00 pass — The claim is directly stated in the passage: 'The first Portuguese ships reached China in 1516.' The subject, predicate, object, and temporal specification all match exactly with the source text.
- qualifier_fidelity 0.90 pass — The claim is faithful to the passage in all key qualifiers. The viewpoint is correctly identified as 'author' (the passage presents this as factual historical information, not attributed to a named source). Stance is correctly 'asserts' and sentiment is 'neutral'. The time qualifiers (when: 1516, valid_from: 1516, valid_to: 1516) accurately match the temporal scope stated in the passage. The context is appropriately empty since the passage provides no special sense or role restriction. The quote 'The first Portuguese ships reached China in 1516' appears verbatim in the passage and directly supports the claim. Minor deduction only for the somewhat redundant valid_from/valid_to fields that duplicate the 'when' field, though this does not violate fidelity.