instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Making his debut for Sunderland last season, who is the only footballer from Benin ever to play in the Premier League?
answer:
sunderland


question:
The Bryce Canyon and Zion National Parks are in which US state?
answer:
bryce canyon national park


question:
In the periodic table which metal follows lithium and sodium in the alkali metals (valency 1)?
answer:

alkali metal