In this task, you are given a sentence which contains a motion and your task is to identify the physical entities involved in the motion. The input sentence can have more than one entity and also there is at least one entity that takes part in physical motion. There are two types of entities which are animate (beings that are alive) and inanimate entities (beings that are not alive).

Ex Input:
There are several passengers traveling in a subway train.

Ex Output:
passengers


Ex Input:
He drew up the windows on either side, tapped on the wood-work, and away we went as fast as the horse could go."

Ex Output:
He


Ex Input:
"Rennie--" That was Campbell climbing up from the raft after another weary passage across.

Ex Output:

Campbell