Input: Identify the most salient words:

A man in baker's whites kneads dough on a floured surface.

Output: dough
knead
surface

Input: Identify the most salient words:

tips on buying the right battery for your car

Output: battery
car
tip

Input: Identify the most salient words:

funny portrait of smiling horse against the blue sky

Output: horse
portrait
sky

Input: Identify the most salient words:

soldiers stand guard at checkpoint .

Output:
checkpoint
guard
soldier
stand