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:  Various people perform a dance routine together with an instructor performing front and center.
Example Output: people

Example Input: An instant later the entire crew struggled out from the companionway, rushed in grim silence to the side of the vessel, and threw themselves into the sea.
Example Output: crew

Example Input: Hotchkiss wiped his collar with his handkerchief.
Example Output:
Hotchkiss