Input: Identify the most salient words:

A large passenger jet flying on a foggy runway.

Output: fly
jet
runway

Input: Identify the most salient words:

children are releasing hundreds of balloons with letters for people from all over the world to reply to them

Output: balloon
release
world

Input: Identify the most salient words:

people gather at the floats next before lights are switched off during the campaign

Output: campaign
light
switch

Input: Identify the most salient words:

time lapse of a drive through us census designated place

Output:
census
designate
drive
place