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:
 More shots are shown of people skateboarding down a road performing several tricks and walking away.

Ex Output:
people


Ex Input:
A heavy hand grasped his shoulder and swung him around, while old Bob West, panting for Breath, exclaimed: "Stop, you fool--stop!

Ex Output:
Bob West


Ex Input:
The noisy, orchard workers who had welcomed Rafael had gone back to the fields again.

Ex Output:

workers