Input: Identify the most salient words:

sunrise through clouds in the sky

Output: cloud
sky
sunrise

Input: Identify the most salient words:

learn how to hem your own jeans with this tutorial .

Output: hem
jean
learn

Input: Identify the most salient words:

bullet train parked at the station under a roof

Output: roof
station
train

Input: Identify the most salient words:

blooming clover on a lush summer meadow

Output:
bloom
clover
meadow