Input: Identify the most salient words:

class locomotive no. hauling a freight train

Output: class
locomotive
train

Input: Identify the most salient words:

soldiers stand in formation to welcome the presidents

Output: formation
soldier
stand

Input: Identify the most salient words:

supporters watch on nervously at the final in stadium

Output: stadium
supporter
watch

Input: Identify the most salient words:

aerial view tilled field near the highway with cars

Output:
car
field
highway
view