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:
Four men were produced at once who had seen a dark mass of boats moving in the light of the dawn.

Ex Output:
men


Ex Input:
Plummer and his canine duettist had brought him to earth.

Ex Output:
Plummer


Ex Input:
His host leaned eagerly forward.

Ex Output:

host