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: perceneige is a commune.

Output: perceneige


Input: Consider Input: hexameter is a metrical line of verse.

Output: hexameter


Input: Consider Input: the duke lemur center is an 85 acre sanctuary for several species of lemurs and lorises.


Output: duke lemur center