instruction:
Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
question:
Context : Jiří Šejba (born July 22, 1962 in Pardubice, Czechoslovakia) is a retired Professional Hockey forward who played 1 season in the National Hockey League for the Buffalo Sabres. 
Answer : Buffalo Sabres
answer:
On what team is Jiří Šejba?


question:
Context : Trace of Stones (German: Spur der Steine) is a 1966 East German film by Frank Beyer. 
Answer : Spur der Steine
answer:
The Trace of Stones is based upon what?


question:
Context : Leônidas died in 2004 in Cotia, São Paulo, because of complications due to Alzheimer's disease, from which he had been suffering since 1974. 
Answer : Alzheimer's disease
answer:

What medical condition was Leônidas suffering from?