Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

Q: bromfield is a village and civil parish in allerdale, cumbria, england.

A: bromfield
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Q: parnassiinae is a subfamily of butterflies.

A: parnassiinae
****
Q: extreme rules (2015) was a professional wrestling pay-per-view show made by wwe.

A:
extreme rules (2015)
****