Input: Identify the most salient words:

They aren't paying attention to anything.

Output: anything
attention
pay

Input: Identify the most salient words:

taking care for the newly born puppies

Output: care
puppy
take

Input: Identify the most salient words:

the sun comes up over a misty spring morning this morning

Output: come
morning
sun

Input: Identify the most salient words:

car and passenger ferry departing for island

Output:
depart
ferry
island