Input: Identify the most salient words:

firefighters respond to a burning building during the riots .

Output: building
firefighter
respond

Input: Identify the most salient words:

A half of a grapefruit on a blue plate.

Output: grapefruit
half
plate

Input: Identify the most salient words:

beekeeper smokes an open beehive for calming bees

Output: bee
beehive
beekeeper

Input: Identify the most salient words:

A bed with an orange headboard, a green pillow, 3 regular pillows and the bedspread turned down.

Output:
bed
bedspread
pillow
turn