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

[EX Q]: In 1459, the Battle of Blore Heath in Staffordshire, England, 2 miles east of Market Drayton in Shropshire, was the first major battle of which campaign?
[EX A]: england

[EX Q]: Against which country did Britain fight 'The Cod Wars'?
[EX A]: cod wars

[EX Q]: Which accusing Calvin Harris song reached No1 on the UK Singles Chart on 14th Sept 2014?
[EX A]:
calvin harris