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

Positive Example 1 -
Input: Who was the first American President?
Output: president of the united states

Positive Example 2 -
Input: The Dutch duo of Ray Slijngaard and Anita Dels, who had 8 top ten hits in the 90s, were better known by what name?
Output: anita doth

Negative Example 1 -
Input: Anna Smashnova played which sport professionally until 2007?
Output: sport

Negative Example 2 -
Input: Rob Davis, Les Gray, Dave Mount and Ray Stiles are members of which pop group?
Output: david

Now complete the following example -
Input: Who wrote and performed the song Rehab that won the 2007 Ivor Novello Award for Best Contemporary Song, and Grammy Awards in 2008 for Record of the Year, Song of the Year, and Best Female Pop Vocal Performance?

Output: rehab, grammy award for best female pop vocal performance, grammy award for song of the year, grammy award for record of the year