What are the keywords in the following sentence? rainbow on the field with trees and lightning
field, lightning, tree

What are the keywords in the following sentence? A cat lazily lying on a laptop on a desk.
desk, laptop, lie

What are the keywords in the following sentence? An airplane parked at the airport letting passengers get on or off the plane.
park, passenger, plane

What are the keywords in the following sentence? A television on top of a fridge covered with magnets.
cover, magnet, top