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:
That night Betty put down a black mark, but not without feeling that the day had ended well in spite of its dark shadows.

Ex Output:
Betty


Ex Input:
The Navajos rode wiry, wild-looking mustangs and drove ponies and burros carrying packs, most of which consisted of deer-hides.

Ex Output:
Navajos


Ex Input:
Oolak turned to his own dogs.

Ex Output:

Oolak