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).

Input: Consider Input:  The man switches to a one leg stance on the machine.

Output: man


Input: Consider Input: "I've been watching you, you rascal," he shouted; "you're done for now!" and he threw his strong arms around the man, pinioning his arms to his side.

Output: he


Input: Consider Input:  The men continues to do tricks with the dog and end with a picture.


Output: men