Input: Identify the most salient words:

a big agricultural machinery is driving on the field and it is turning hay around .

Output: hay
machinery
turn

Input: Identify the most salient words:

Three zebras eating hay at a wildlife habitat.

Output: eat
habitat
zebra

Input: Identify the most salient words:

politicians talk with students while visiting a classroom

Output: classroom
politician
student

Input: Identify the most salient words:

A large jet airplane just taking off and ascending.

Output:
airplane
ascend
take