Input: Identify the most salient words:

models walks the runway at the finale of fashion show during fashion week

Output: finale
model
runway
walk

Input: Identify the most salient words:

authorities started detaining demonstrators shortly after the protests began .

Output: begin
demonstrator
protest

Input: Identify the most salient words:

aurora caused by charged particles emitted .

Output: aurora
charge
particle

Input: Identify the most salient words:

A half eaten pepper and mushroom pizza on a metal tray.

Output:
eat
mushroom
pepper
pizza