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.

Example Input: maryam durani ( ) (born 1987) is an activist and women's advocate.
Example Output: maryam durani

Example Input: pipo de clown (english: pipo the clown) is a clown who became very popular on dutch television.
Example Output: pipo de clown

Example Input: skagit valley is a valley in washington in the united states.
Example Output:
skagit valley