Input: Identify the most salient words:

traffic of cars on a highway at sunny summer morning in the city .

Output: city
morning
traffic

Input: Identify the most salient words:

ear of corn against a field under clouds

Output: corn
ear
field

Input: Identify the most salient words:

a squirrel eats a nut in the gardens .

Output: eat
garden
squirrel

Input: Identify the most salient words:

purple bougainvillea growing against the wall of a rural cottage

Output:
bougainvillea
grow
wall