TASK DEFINITION: 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).
PROBLEM: And we set off at a great pace, sometimes plunging through the bushes to the chest.

SOLUTION: we

PROBLEM:  The man then sprays down the roof and moves back and fourth.

SOLUTION: man

PROBLEM: The Navajos rode wiry, wild-looking mustangs and drove ponies and burros carrying packs, most of which consisted of deer-hides.

SOLUTION:
Navajos

