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

[Q]: With which song did Swedish pop group Abba win the 1974 Eurovision Song Contest?
[A]: abba


[Q]: What is the second book of the Bible?
[A]: bible


[Q]: What city will host the 2020 Summer Olympics?
[A]:
2020 summer olympics