Input: Identify the most salient words:

a painting of some clouds on a blue sky

Output: cloud
painting
sky

Input: Identify the most salient words:

soldiers stand guard to welcome politician to the airport

Output: airport
soldier
stand

Input: Identify the most salient words:

Two hotdogs in soggy buns with chili, onion and mustard.

Output: hotdog
mustard
onion

Input: Identify the most salient words:

a thick blanket of early morning fog partially shrouds the skyscrapers of the districts .

Output:
blanket
fog
skyscraper