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: A man is seen playing a saxophone into the camera and leads into him speaking.
Example Output: man

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

Example Input: They put a ladder to the burning framework of the house, and five men ran up it at once.
Example Output:
They