Input: Identify the most salient words:

smiling student working in the canteen at the university

Output: canteen
smile
student
university
work

Input: Identify the most salient words:

To see a lot of planes, go to an air museum.

Output: lot
museum
plane

Input: Identify the most salient words:

fog rolling into the mountains

Output: fog
mountain
roll

Input: Identify the most salient words:

spotted dolphin swimming in front of the boat

Output:
dolphin
front
swim