instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Who was the CBS News anchor-man known as 'the man Americans most trust'?
answer:
news presenter


question:
What canal opened in Egypt?
answer:
egypt


question:
Which city hosted the 1976 Summer Olympic Games ?
answer:

1976 summer olympics