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:  men are snowboarding in a hill.
Example Output: men

Example Input:  She pours a blue bottle into the drink.
Example Output: She

Example Input: She had sent out all the servants and the governess, surely an unusual thing in an establishment of that sort.
Example Output:
She