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:
A lawn is shown and then the man begins to mow his lawn.

Ex Output:
man


Ex Input:
 People are going down a hill in a tube.

Ex Output:
People


Ex Input:
 They go as fast as they can, advertising a fitness gym.

Ex Output:

They