Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: With which song did Swedish pop group Abba win the 1974 Eurovision Song Contest?

Answer: abba


Question: What was the first British credit card?

Answer: credit card


Question: In which movie did Bond first drive an Aston Martin DB5?

Answer:
aston martin db5