Input: Identify the most salient words:

A train driving down the tracks with a clock outside with the date and time.

Output: drive
time
track

Input: Identify the most salient words:

the profile of a whitetail deer buck as it stands in a meadow

Output: meadow
profile
stand

Input: Identify the most salient words:

aerial shot of motorcycles driving on the highway in the mountains

Output: drive
mountain
shot

Input: Identify the most salient words:

soldiers stand alongside their armored vehicles

Output:
soldier
stand
vehicle