Question: What is the cause of death of director of film Bjørnepatruljen?
Sentence (from "Bjørnepatruljen"): Bjørnepatruljen  is a 1956 Norwegian family film written and directed by, and starring Carsten Byhring, as well as Dan Fosse, Einar Vaage, Jannike Falk and Bente Lindbeck.
Relevant evidence: Yes