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.

Q: a viola is a musical instrument which is similar to the violin and cello.

A: viola
****
Q: priyanka chopra (born on 18 july 1982 in jamshedpur, bihar, india) is an indian actress, singer and dancer.

A: priyanka chopra
****
Q: jamal woolard (born july 8, 1975) is an american stand-up comedian, actor, rapper, and comedian.

A:
jamal woolard
****