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

Ex Input:
Context : Outwitting Trolls is a murder mystery written by William G. Tapply that takes place in Boston. 
Question : Which place is Outwitting Trolls in?

Ex Output:
Boston


Ex Input:
Context : The RPG-40 was an anti-tank hand grenade developed by the Soviet Union in 1940. 
Question : What year was the service entry date for RPG-40?

Ex Output:
1940


Ex Input:
Context : USS George M. Campbell (DE-773) was a United States Navy Cannon-class destroyer escort proposed during World War II but never completed. 
Question : What specific type of seafaring vessel was USS George M. Campbell (DE-773)?

Ex Output:

Cannon-class destroyer escort