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).

Input: Consider Input: A heavy hand grasped his shoulder and swung him around, while old Bob West, panting for Breath, exclaimed: "Stop, you fool--stop!

Output: Bob West


Input: Consider Input:  Another boy approaches as he wraps his legs around his neck.

Output: boy


Input: Consider Input: I stumbled and slipped along the hill-side, my breath labouring, and a moaning at my lips from sheer agony and weakness.


Output: I