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:  She now rides down the hill without falling and is able to move effectively back and fourth.

SOLUTION: She

PROBLEM: "I don't care if you be," said the girl, tossing her head.

SOLUTION: girl

PROBLEM: Then, to the girl's amazement, he tottered toward a large, shelf-like slab of stone and kneeling down, as before an altar, he bared his head, raised his arms on high and began to pray.

SOLUTION:
he