Question: What is the cause of death of director of film Phffft?
Sentence (from "Mark Robson (film director)"): He directed thirty-four films during his career, including "The Bridges at Toko-Ri" (1955), "Peyton Place" (1957), for which he earned his first Oscar nomination, "Von Ryan's Express" (1965), and "Valley of the Dolls" (1967).
Relevant evidence: No