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

Input: Consider Input: With which song did Swedish pop group Abba win the 1974 Eurovision Song Contest?

Output: abba


Input: Consider Input: Mar Chiquita (Cordoba) is the largest natural salt lake in which South American country?

Output: mar chiquita lake


Input: Consider Input: Who had an 80s No 1 with Don't You Want Me?


Output: don't you want me