TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: In 1959, for which film did David Niven win his only Academy Award?

SOLUTION: david niven

PROBLEM: Who won the Women's Singles at the 2015 Australian Open Tennis Championships?

SOLUTION: the championships, wimbledon

PROBLEM: Which European capital city hosted the 1952 Summer Olympics?

SOLUTION:
1952 summer olympics