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).

Input: Consider Input: I sent her home, but instead of going home she went to the outer canal and drowned herself.

Output: I

Input: Consider Input: Whenever I've mewed before he has always come a-running.

Output: he

Input: Consider Input: Sometimes they moved not more than a few paces to let him pass.
Output: they