Input: Identify the most salient words:

young boy throwing leaves in the park having fun

Output: fun
leave
park

Input: Identify the most salient words:

passengers watch an airplane pull in .

Output: passenger
pull
watch

Input: Identify the most salient words:

With her free hand, she grasps along pipe running along the ceiling, propelling herself down the hallway.

Output: ceiling
grasp
hand
propel
run

Input: Identify the most salient words:

Very large JAL jet taxiing on the runway at airport in urban environment

Output:
airport
runway
taxi