Input: Identify the most salient words:

bulls feeding from trough at the farm

Output: farm
feed
trough

Input: Identify the most salient words:

boxer gets some help from cheerleaders as they root for his fight .

Output: boxer
cheerleader
fight

Input: Identify the most salient words:

A soldier cocks a machine gun aimed at the camp.

Output: aim
gun
soldier

Input: Identify the most salient words:

part of the old city walls around a city .

Output:
city
part
wall