Question: How many books has a winner of multiple Hugo Awards after after winning the John W. Campbell Award born in 1942 written?
Sentence (from "C. J. Cherryh"): She has written more than 60 books since the mid-1970s, including the Hugo Award-winning novels "Downbelow Station" (1981) and "Cyteen" (1988), both set in her Alliance-Union universe.
Relevant evidence: Yes