Input: Identify the most salient words:

doctor giving medicine to senior woman at a clinic

Output: clinic
give
medicine

Input: Identify the most salient words:

portrait of the tiger resting at the zoo

Output: rest
tiger
zoo

Input: Identify the most salient words:

a waterfall cascades liquid light into a dark pool

Output: cascade
pool
waterfall

Input: Identify the most salient words:

A man is installing carpeting by stapling it to the floor and bumping it into place with his knee.

Output:
floor
instal
knee