Input: Identify the most salient words:

biological species on the bees eat pollen

Output: bee
pollen
specie

Input: Identify the most salient words:

an image of a plane at an airport

Output: airport
image
plane

Input: Identify the most salient words:

touring car coming into the pits after crashing

Output: car
come
crash

Input: Identify the most salient words:

fireworks explode over greek revival structure during the celebration .

Output:
celebration
explode
firework
structure