Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : NGC 6886 is a planetary nebula in the constellation Sagitta. 
Answer : Sagitta
In which constellation is NGC 6886?

Context : Power Rangers Lost Galaxy is an American television series and the seventh season of the Power Rangers franchise, based on the Super Sentai series Seijuu Sentai Gingaman. 
Answer : Seijuu Sentai Gingaman
The Power Rangers Lost Galaxy is based upon what?

Context : Cindy Walters (born 1963) is an Australian architect and partner at Walters & Cohen in London, England. 
Answer : London

What city is Cindy Walters from?