Input: Identify the most salient words:

biological species also known as biological species waking up on an early autumn morning

Output: know
morning
wake

Input: Identify the most salient words:

lifeguards advising surfers to stay out of the water .

Output: stay
surfer
water

Input: Identify the most salient words:

you are going to love the benefits of eating one of these recipes first thing in the morning .

Output: eat
morning
thing

Input: Identify the most salient words:

An assortment of fruit laid out in a basket.

Output:
assortment
fruit
lay