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).

Example Input:  People are going down a hill in a tube.
Example Output: People

Example Input: She put her hand to her throat and, hardly able to believe in her victory, sat struggling for breath.
Example Output: She

Example Input: He reached home rather late.
Example Output:
He