Input: Identify the most salient words:

protestors gather for a rally

Output: gather
protestor
rally

Input: Identify the most salient words:

A farmer in overalls herding sheep as one dog helps while the other dog rests.

Output: farmer
help
herd
sheep

Input: Identify the most salient words:

featured image for see all the planes flying in the world right now

Output: fly
image
plane
world

Input: Identify the most salient words:

red squirrel feeding on seeds and nuts while perched on the top of a decaying tree stump

Output:
nut
perch
seed
squirrel
stump