Input: Identify the most salient words:

A piano player plays the piano while on stage of a church.

Output: church
piano
stage

Input: Identify the most salient words:

marine iguana eating algae off volcanic rocks at low tide

Output: eat
rock
tide

Input: Identify the most salient words:

politician delivers a speech to recognise country as a state

Output: deliver
politician
state

Input: Identify the most salient words:

soldier playing piano in a street

Output:
piano
soldier
street