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: george clifton james (may 29, 1920 april 15, 2017) was a retired american actor.

Output: clifton james

Input: Consider Input: michelbach-le-bas is a commune.

Output: michelbach-le-bas

Input: Consider Input: job satisfaction or employee satisfaction has been defined in different ways.
Output: job satisfaction