Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

[Q]: What is the alcoholic ingredient of a Screwdriver cocktail?
[A]: screwdriver


[Q]: July 1938 saw the first ascent of the North Face of which Alpine mountain?
[A]: alps


[Q]: What was the name of Al Gore's documentary?
[A]:
al gore