Input: Identify the most salient words:

the rail bridge built replacing an older bridge

Output: bridge
build
replace

Input: Identify the most salient words:

group of hens eating grain in the green grass

Output: eat
grass
hen

Input: Identify the most salient words:

ancient painting from the tomb of monarch

Output: monarch
painting
tomb

Input: Identify the most salient words:

apartment buildings overlook sea near the town

Output:
overlook
sea
town