Input: Identify the most salient words:

bear cub and a kitten playing in a field

Output: bear
cub
field

Input: Identify the most salient words:

an aircrafts fly in formation during a training mission over person

Output: aircraft
fly
formation
mission

Input: Identify the most salient words:

a couple celebrating a special occasion standing over a cake

Output: cake
celebrate
occasion

Input: Identify the most salient words:

travelers hurry to make their flights at the airport

Output:
airport
hurry
traveler