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: 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: the somatic nervous system (sns) is part of the peripheral nervous system.

Output: somatic nervous system


Input: Consider Input: a releaser is a stimulus from one animal to another, which causes a particular response.


Output: releaser