Input: Identify the most salient words:

old tank left behind after armed force abandoned a training camp .

Output: abandon
leave
tank

Input: Identify the most salient words:

stream flowing in slow motion among boulders through montane rainforest at elevation

Output: boulder
elevation
flow
motion
rainforest

Input: Identify the most salient words:

early morning fog covers suspension bridge

Output: bridge
cover
fog

Input: Identify the most salient words:

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

Output:
lake
mountain
ripple
surround
water