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 Q]:  A woman in a brown shirt is holding a red cup.
[EX A]: woman

[EX Q]:  They pick it back up quickly and get back to it, moving so fast again.
[EX A]: They

[EX Q]: "He is dead!" Then entered one I had seen before--Major Barton, the most pitiless of the government's agents in suppressing insurrection.
[EX A]:
Barton