A document is something created by author(s) that may be viewed, listened to, etc., by some audience. A document persists in material form (e.g., a concert or dramatic performance is not a document). Documents typically reside in libraries.
(Subclass-Partition Biblio-Thing (Setof Agent Timepoint Document Reference Conference)) (=> (Document ?X) (Value-Cardinality ?X Doc.Title 1)) (=> (Doc.Title $X $Y) (Document $X)) (=> (Doc.Author $X $Y) (Document $X)) (Nth-Domain Doc.Author.Name 1 Document) (=> (Doc.Author-Name $X $Y) (Document $X)) (=> (Doc.Publication-Date $X $Y) (Document $X)) (=> (Doc.Publisher $X $Y) (Document $X)) (=> (Doc.Number-Of-Pages $X $Y) (Document $X)) (=> (Ref.Document $X $Y) (Document $Y)) (Inherited-Facet-Value Slot-Value-Type Publication-Reference Ref.Document Document) (=> (Publication-Reference ?Ref) (And (Value-Cardinality ?Ref Ref.Document 1) (Value-Type ?Ref Ref.Document Document) (Value-Cardinality ?Ref Ref.Title 1)))