Input: Identify the most salient words:

the cottage where novelist lived

Output: cottage
live
novelist

Input: Identify the most salient words:

walls and towers of the medieval town

Output: tower
town
wall

Input: Identify the most salient words:

time lapse of low hanging clouds over mountain early in the morning

Output: cloud
lapse
morning
mountain

Input: Identify the most salient words:

A pizza with cheese has white sauce on it.

Output:
cheese
pizza
sauce