Input: Identify the most salient words:

A runner has trained for years and finally completes a 5k marathon.

Output: complete
marathon
runner

Input: Identify the most salient words:

religious leader and battle for the ball

Output: ball
battle
leader

Input: Identify the most salient words:

things to look for when buying industry

Output: buy
industry
thing

Input: Identify the most salient words:

Snowboarders dressed in full gear on a snowy hill in the midst of a dreary day.

Output:
day
hill
snowboarder