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: They could hear the great creature crashing through the woods, and they hurried on in pursuit.

Output: they


Input: Consider Input: "She waltzes beautifully."

Output: She


Input: Consider Input: Sometimes the great boat, swung sidewise in the current in spite of the last art of the steersmen, would tauten the line like a tense fiddle-string, flipping the men, like so many insects, from their footing, and casting them into the river, to emerge as best they might.


Output: men