Input: Identify the most salient words:

selection of food product on sale in a supermarket

Output: product
sale
supermarket

Input: Identify the most salient words:

stream flowing among mossy boulders through montane rainforest at elevation

Output: boulder
elevation
flow
rainforest
stream

Input: Identify the most salient words:

living organisms some basic characteristics of life

Output: characteristic
life
organism

Input: Identify the most salient words:

Two red trays of food that includes carrots, grapes and meat.

Output:
carrot
food
include
tray