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

Input: Consider Input: Which American actor and singer has joined Amanda Holden as one of the judges on the current series of 'Britain's Got Talent'?

Output: britain's got talent

Input: Consider Input: Who won an Oscar for the music for Chariots of Fire in 1981?

Output: chariots of fire

Input: Consider Input: Ali Bongo Ctadimba is the President of which African country - his father Omar Bongo held the position from 1967 to 2009?
Output: omar bongo