Input: Identify the most salient words:

rocks bordering grasses with weeds in an overgrown garden

Output: garden
grass
rock

Input: Identify the most salient words:

People wait for a chance to use the restroom

Output: restroom
use
wait

Input: Identify the most salient words:

the bob that started my quest for short hair with bangs .

Output: bang
bob
hair

Input: Identify the most salient words:

A vibrant colored semi is parked in a lot by several regular colored ones.

Output:
lot
park
semi