TASK DEFINITION: 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.
PROBLEM: a brinicle is a column of ice that forms in seawater.

SOLUTION: brinicle

PROBLEM: margaret colin (born may 26, 1958) is an american actress.

SOLUTION: margaret colin

PROBLEM: mazirat is a commune.

SOLUTION:
mazirat