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: jesse helms (october 18, 1921 - july 4, 2008) was a senator from north carolina.

Output: jesse helms


Input: Consider Input: a dipole speaker is a type of a loudspeaker.

Output: dipole speaker


Input: Consider Input: the bhaati gate is one of the 12 old gates of lahore's walled city, now in pakistan.


Output: bhaati gate