Input: Identify the most salient words:

Several people in a large building that is filled with luggage tagged with yellow tags.

Output: building
fill
luggage

Input: Identify the most salient words:

Someone's face comes close and a smile passes across his face.

Output: come
face
smile

Input: Identify the most salient words:

windy day on the porch with curtains blowing in the breeze

Output: blow
breeze
day

Input: Identify the most salient words:

People are waiting to check in for their flights.

Output:
check
flight
wait