Input: Identify the most salient words:

the cruise ship leaves tourist attraction

Output: attraction
leave
ship

Input: Identify the most salient words:

homes for the holidays main image

Output: holiday
home
image

Input: Identify the most salient words:

tree that the beavers gnawed

Output: beaver
gnaw
tree

Input: Identify the most salient words:

people at a traditional feast on the island of operating system software

Output:
island
operate
software