Input: Identify the most salient words:

rainbow in the skies and rainbow colors falling down like a rain

Output: rain
rainbow
sky

Input: Identify the most salient words:

confectionery and biscuits for sale at a stall at the street market

Output: biscuit
market
sale

Input: Identify the most salient words:

canadian census division after a snowstorm hit the city .

Output: city
hit
snowstorm

Input: Identify the most salient words:

cute baby newborn twin lambs lying together in a field in spring

Output:
field
lamb
spring