Input: Identify the most salient words:

A train makes its way across a steel bridge.

Output: bridge
train
way

Input: Identify the most salient words:

stained glass window depicting builder and book in the cathedral

Output: builder
depict
stain
window

Input: Identify the most salient words:

An urban train emerges from a tunnel in the city

Output: city
train
tunnel

Input: Identify the most salient words:

The bear is looking for some salmon to eat.

Output:
bear
eat
look