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: fufu (pounded yam or cassava) is a food dish which first came from west africa, but is enjoyed by many people across the world.

Output: fufu


Input: Consider Input: vicki ann axelrad (also called vicki lawrence; born march 26 1949) is an american comedienne, actress and a singer.

Output: vicki lawrence


Input: Consider Input: a tuning fork is a sound resonator which is a two-pronged fork.


Output: tuning fork