Input: Identify the most salient words:

Three lights surrounding a brass clock with two faces showing time of 3:48.

Output: clock
light
time

Input: Identify the most salient words:

star compared to the planets of the solar system

Output: planet
star
system

Input: Identify the most salient words:

An airplane is on the tarmac, with a boarding staircase pushed against it.

Output: airplane
board
staircase

Input: Identify the most salient words:

pedestrians and commuters walking to work on a sunny morning near station

Output:
commuter
walk
work