Input: Identify the most salient words:

A bear rests next to a tree on a rock.

Output: bear
rest
rock
tree

Input: Identify the most salient words:

steering wheel of a new model

Output: model
steer
wheel

Input: Identify the most salient words:

commuters make their way on the escalator at underground station .

Output: escalator
station
way

Input: Identify the most salient words:

young woman walking with the horse in forest during the summer

Output:
horse
summer
walk