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:
 Then, the young lady chop the log in two and she smiles while the
chopped wood are on the ground.

Ex Output:
lady


Ex Input:
He had to knock several times.

Ex Output:
He


Ex Input:
His fingers went out over the flagging.

Ex Output:

fingers