Input: Identify the most salient words:

Two trains on separate tracks travel through a city

Output: city
track
train
travel

Input: Identify the most salient words:

thermal insulation fixed to the facade of a building under construction

Output: building
construction
facade

Input: Identify the most salient words:

A toy horse appears to trot across a road

Output: horse
road
trot

Input: Identify the most salient words:

A lunch tray is shown with bread, meat, veggies, and fruit.

Output:
fruit
meat
tray