Input: Identify the most salient words:

Fire hydrant surrounded by a blue tarp and some type of equipment in the foreground

Output: hydrant
surround
type

Input: Identify the most salient words:

berries and leaves on a branch in the forest

Output: branch
forest
leave

Input: Identify the most salient words:

rooster waits for sale at a local market

Output: market
sale
wait

Input: Identify the most salient words:

front of a train on the tracks

Output:
front
track
train