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:
For an hour or more he sat close by the horses, and noted that they fed uneasily and would not lie down.

Ex Output:
horses


Ex Input:
A man is seen speaking to the camera while holding up a cigarette.

Ex Output:
man


Ex Input:
 We then see people performing martial arts in a plaza and a field.

Ex Output:

people