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:  A dog is seen running up and down the field in the middle of the audience.

Output: dog


Input: Consider Input: On the seat beside him was a young girl, and as the vehicles passed each other Beth gave a start and clung to the boy's arm.

Output: Beth


Input: Consider Input: We returned to camp, not a word being said about trading, when the buyers suggested returning to town.


Output: We