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: jennifer warnes is an american singer.

Output: jennifer warnes


Input: Consider Input: county monaghan (in gaelic ) is a county in ireland.

Output: county monaghan


Input: Consider Input: a tadpole or polliwog is a young frog that breathes and lives in the water.


Output: tadpole