Input: Identify the most salient words:

A train on a track leaving the station.

Output: leave
station
track
train

Input: Identify the most salient words:

people are praying under bodhi tree a place of enlightenment

Output: enlightenment
pray
tree

Input: Identify the most salient words:

an endangered green sea turtle begins to swim after being released off the coast

Output: endanger
swim
turtle

Input: Identify the most salient words:

The rippling waters of Hogwarts lake are surrounded by dark mountains.

Output:
lake
mountain
ripple
surround
water