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).

Example Input: We ran to where the thing had struck, three hundred yards across the field.
Example Output: We

Example Input: There were but few persons besides himself and his companion within the cathedral, and these few were chiefly booksellers' porters, who were hurrying out of Saint Faith's in the utmost trepidation.
Example Output: persons

Example Input: Robin immediately sat down in it, to eat his dinner, beginning with the "gross foods," according to the English custom.
Example Output:
Robin