Generate a correct and concise answer for the question based on the words in the context.

[EX Q]: Context : Antonio Machín (Antonio Abad Lugo Machín; 11 February 1903, in Sagua la Grande, Cuba -- 4 August 1977, in Madrid) was a Cuban singer and musician. 
Question : The year Antonio Machín died was what?
[EX A]: 4 August 1977

[EX Q]: Context : Irina Malkova (born 23 March 1989) is a Russian female volleyball player. 
Question : What kind of  occupation does Irina Malkova have?
[EX A]: volleyball player

[EX Q]: Context : John C. Williamson served in the California legislature and during World War II he served in the United States Army. 
Question : In which war did John C. Williamson participate?
[EX A]:
World War II