TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : Jessica Pegula (born February 24, 1994) is an American professional tennis player. 
Question : What was Jessica Pegula's occupation?

SOLUTION: tennis player

PROBLEM: Context : The Winter Hill air disaster occurred on 27 February 1958 when the Silver City Airways Bristol 170 Freighter G-AICS, travelling from the Isle of Man to Manchester, England, crashed into Winter Hill (also known as Rivington Moor) several hundred yards away from the Independent Television Authority's Winter Hill transmitting station. 
Question : The point in time of Winter Hill air disaster was when?

SOLUTION: 27 February 1958

PROBLEM: Context : USS Moray (SS-300), a Balao-class submarine, was a ship of the United States Navy named for the moray, a family of large eels found in crevices of coral reefs in tropical and subtropical oceans. 
Question : What specific type of seafaring vessel was USS Moray (SS-300)?

SOLUTION:
Balao-class submarine