Question: What is the cause of death of director of film Ukrainian Rhapsody?
Sentence (from "Sergei Parajanov"): His health seriously weakened by four years in labor camps and nine months in prison in Tbilisi, Parajanov died of lung cancer in 1990, at a time when, after almost 20 years of suppression, his films were being featured at foreign film festivals.
Relevant evidence: Yes