Input: Identify the most salient words:

find out why these sculptures are under the sea

Output: find
sculpture
sea

Input: Identify the most salient words:

students protest against the administration .

Output: administration
protest
student

Input: Identify the most salient words:

an individual ant crawls around the bark of a tree searching for food .

Output: ant
bark
tree

Input: Identify the most salient words:

turtles now know where they belong in the tree of life

Output:
know
life
tree