Input: Identify the most salient words:

a stream flowing between the hills

Output: flow
hill
stream

Input: Identify the most salient words:

sun rise across a snowy stubble field

Output: field
rise
sun

Input: Identify the most salient words:

A white plate containing a slice of pizza and some sauce.

Output: pizza
plate
sauce
slice

Input: Identify the most salient words:

Someone, a salesman, sits at one of the desks, filling out a report.

Output:
desk
salesman
sit