Input: Identify the most salient words:

time lapse of shadows moving across rocks

Output: move
rock
shadow

Input: Identify the most salient words:

Small black kitten on keyboard of grey laptop.

Output: keyboard
kitten
laptop

Input: Identify the most salient words:

politician speaks during a meet and greet event .

Output: event
greet
politician

Input: Identify the most salient words:

when you want to let them know they had the best graduation of all time .

Output:
know
let
want