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.

Ex Input:
all we know is falling is the first album of the band paramore.

Ex Output:
all we know is falling


Ex Input:
laurie cunningham is a former football player.

Ex Output:
laurie cunningham


Ex Input:
thiel-sur-acolin is a commune.

Ex Output:

thiel-sur-acolin