Question: Robert Walser and Ira Levin are both a?
Sentence (from "Ira Levin"): His most noted works include the novels "A Kiss Before Dying" (1953), "Rosemary's Baby" (1967), "The Stepford Wives" (1972), and "The Boys from Brazil" (1976), as well as the play "Deathtrap" (1978).
Relevant evidence: No