Question: What is the cause of death of director of film China O'Brien Ii?
Sentence (from "Robert Clouse"): Other projects included "Black Belt Jones" (1974), "Darker than Amber" (1970), "China O'Brien" (1990), Jackie Chan's "The Big Brawl" (1980), "Gymkata" (1985), "The Ultimate Warrior" (1975), among others.
Relevant evidence: No