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

Example Input: Who wrote and recorded the original version of the song Blue Suede Shoes which was a hit single for Elvis Presley in 1955?
Example Output: blue suede shoes

Example Input: What is the French name for the English Channel?
Example Output: channel

Example Input: In the news in January 2011 for the murder of 37 people in a bombing incident, in which country is Domodedovo Airport?
Example Output:
domodedovo international airport