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:  The man helps the woman on the horse and she leads it around the arena.

SOLUTION: woman

PROBLEM: Once, when this place was all wildwood, the man who was seeking a spot for the location of the buildings of Phillips Academy climbed this oak, using it as a sort of green watchtower, from whence he might gain a view of the surrounding country.

SOLUTION: man

PROBLEM: He threw himself down by the side of Decoud at last, and whispered into his ear that if daylight caught them near the Sulaco shore through want of wind, it would be possible to sweep the lighter behind the cliff at the high end of the Great Isabel, where she would lie concealed.

SOLUTION:
He