Input: Identify the most salient words:

a series of protests last year eventually led to all teams quitting the mountain

Output: lead
series
team

Input: Identify the most salient words:

An old standing clock surrounded by tall grass.

Output: clock
grass
surround

Input: Identify the most salient words:

in outer space a green planet with gaseous rings surrounding its surface slowly rotates

Output: ring
rotate
space
surface
surround

Input: Identify the most salient words:

parliamentary republic have a poor record against country at major tournaments

Output:
country
record
tournament