Input: Identify the most salient words:

frightened red cat looks inside the empty pool

Output: cat
look
pool

Input: Identify the most salient words:

human language on a blackboard in chalk

Output: blackboard
chalk
language

Input: Identify the most salient words:

A row of motorcycles in an parking lot.

Output: lot
motorcycle
row

Input: Identify the most salient words:

american football player surprises a fan before sports league championship .

Output:
fan
player
surprise