Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

Input: Consider Input: dominoes is a game played with small tiles called dominoes.

Output: dominoes


Input: Consider Input: nick clegg was a member of the european parliament (mep) from 1999 to 2004 and was first elected as a liberal democrat mp in the 2005 general election.

Output: nick clegg


Input: Consider Input: a dervish or darvesh is a type of sufi.


Output: dervish