Input: Identify the most salient words:

mom walking down the aisle

Output: aisle
mom
walk

Input: Identify the most salient words:

flying in space to the galaxy

Output: fly
galaxy
space

Input: Identify the most salient words:

Steam rising from a train moving along tracks.

Output: move
steam
track
train

Input: Identify the most salient words:

things i wish i knew before buying a home

Output:
know
thing
wish