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: And she ran her hand through his yellow hair, and smiled in a way which was not good.

Output: she


Input: Consider Input: As he walked out with him to the front door, he suddenly thought of Mr. Buxton again and his reception in the afternoon.

Output: he


Input: Consider Input: The woman rapped at the door.


Output: woman