8. The computer program product as set forth in claim 7 wherein the category comprises a topical category.
7. A computer program product comprising: a tangible, computer-readable computer memory device which is not a propagating signal per se; and program instructions encoded by the computer memory device for causing a processor to, when executed, perform steps comprising: receiving at least a portion of a new document prior to ingestion of the portion into a corpus of a cognitive computing system; and still prior to or during ingestion: associating the portion of the new document by topic to at least one category of documents within the corpus; automatically querying using the cognitive computing system the corpus plus the portion of the new document according to one or more questions previously associated with the category; responsive to the querying, automatically detecting one or more discrepancies between the portion of the new document and the corpus; assigning a confidence factor to each detected discrepancy; and reporting the one or more discrepancies and the assigned confidence factors to a user.