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

[EX Q]: Context : Samuel Harriman (October 1826 -- August 25, 1897) was a colonel in the Union Army during the American Civil War who was nominated and confirmed for appointment to the grade of brevet brigadier general in 1866. 
Question : Which war did Samuel Harriman serve in?
[EX A]: American Civil War

[EX Q]: Context : Nanook of the North (also known as Nanook of the North: A Story Of Life and Love In the Actual Arctic) is a 1922 American silent documentary film by Robert J. Flaherty, with elements of docudrama, at a time when the concept of separating films into documentary and drama did not yet exist. 
Question : Which place is Nanook of the North in?
[EX A]: Arctic

[EX Q]: Context : Power Rangers S.P.D. is an American television series and the thirteenth season of the Power Rangers franchise, based on the Super Sentai series, Tokusou Sentai Dekaranger. 
Question : The Power Rangers S.P.D. is based upon what?
[EX A]:
Tokusou Sentai Dekaranger