Input: Identify the most salient words:

class locomotive on a freight train at station in the winter

Output: locomotive
station
train

Input: Identify the most salient words:

yoga is a gentle way to stay active during month .

Output: stay
way
yoga

Input: Identify the most salient words:

aerial shot with a drone of a tropical rain forest and a rural road

Output: forest
road
shoot

Input: Identify the most salient words:

fishermen cast out into sea from the pier

Output:
fisherman
pier
sea