Question: What is the cause of death of Danielle Mitterrand's husband?
Sentence (from "François Mitterrand"): Beyond making the French left electable, Mitterrand presided over the rise of the Socialist Party to dominance of the left, and the decline of the once-mighty Communist Party (as a share of the popular vote in the first presidential round, the Communists shrank from a peak of 21.27% in 1969 to 8.66% in 1995, at the end of Mitterrand's second term).
Relevant evidence: No