Input: Identify the most salient words:

An elephant eats in the grass in his habitat.

Output: eat
elephant
habitat

Input: Identify the most salient words:

villa and pool in the evening

Output: evening
pool
villa

Input: Identify the most salient words:

lessons learned in life the person who wants you .

Output: learn
lesson
life
want

Input: Identify the most salient words:

image of books on a shelf

Output:
book
image
shelf