TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : Rear Admiral Charles Stillman Sperry (3 September 1847 -- 1 February 1911) was an officer in the United States Navy. 
Question : Which military did Charles Stillman Sperry serve with?

SOLUTION: United States Navy

PROBLEM: Context : Le Fumeur, titled Man with Pipe and dated c. 1912, forms part of the permanent collection of the Carnegie Museum of Art, Pittsburgh, Pennsylvania (gift of G. David Thompson, 1953). 
Question : What is the name of the place where Le Fumeur can be found?

SOLUTION: Carnegie Museum of Art

PROBLEM: Context : The 2011 Beechcraft 65-80 Queen Air crash occurred on 10 December 2011, when a Beechcraft 65-80 Queen Air cargo plane experienced an engine failure and crashed into the Felixberto Serrano Elementary School in Parañaque, Philippines, killing at least 14 people including the three crew members on board the aircraft, and injuring over 20 people. 
Question : When did 2011 Beechcraft 65-80 Queen Air crash occur?

SOLUTION:
10 December 2011