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:
Their fathers and husbands, forced temporarily into the background, crowded round the meagre refreshment table in the entrance hall.

Ex Output:
Their father


Ex Input:
 The two ride back together with the woman leading them in front.

Ex Output:
two


Ex Input:
His hand trembled as with a palsy, especially noticeable when he poured his whiskey, though I never knew him to spill a drop.

Ex Output:

hand