Input: Identify the most salient words:

couples portrait session during snow in winter

Output: couple
portrait
session

Input: Identify the most salient words:

olympic athlete was once the most expensive player in the world

Output: athlete
player
world

Input: Identify the most salient words:

Two zebras walking side by side in an enclosure

Output: enclosure
walk
zebra

Input: Identify the most salient words:

heavy thick smoke covering the sky as it billows up from a fire .

Output:
cover
fire
sky
smoke