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: I whipped off my flannel jacket as I ran.

Output: I


Input: Consider Input: The Pallas Castle was wrestling the great sphere she had hauled from Jupiter into a stable path computed by Central Control.

Output: she


Input: Consider Input:  The child falls on the lawn.


Output: child