instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
What was the currency of Austria before the Euro?
answer:
austria


question:
Bound for Glory is the 1943 autobiography of which singer-songwriter?
answer:
bound for glory


question:
How are the poems 'Burnt Norton', 'East Coker', 'The Dry Salvages' and 'Little Gidding' by TS Eliot known collectively?
answer:

the dry salvages