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: cape hatteras is a cape on the coast of north carolina.

Output: cape hatteras

Input: Consider Input: electoral fraud or vote rigging is any alteration or changing the vote count in election.

Output: electoral fraud

Input: Consider Input: mrs. hugh hammersley is an oil painting by john singer sargent.
Output: mrs. hugh hammersley