Input: Identify the most salient words:

portrait of a smiling engineer in a construction site

Output: engineer
site
smile

Input: Identify the most salient words:

The family is drowning in the lake.

Output: drown
family
lake

Input: Identify the most salient words:

this is the only tree of this species i know .

Output: know
specie
tree

Input: Identify the most salient words:

A stop sign that is at an intersection instead of stop lights.

Output:
intersection
light
sign
stop