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).

Ex Input:
Much confusion was observed among the artillery-men, and in a short time several of the guns were dismounted, and four or five powder waggons blown up.

Ex Output:
artillery-men


Ex Input:
I whipped off my flannel jacket as I ran.

Ex Output:
I


Ex Input:
She wrung her hands; and at last, as I ended, she exclaimed:  "Oh, what shall I do?

Ex Output:

She