What are the keywords in the following sentence? fresh crabs for sale by a vendor in a street
sale, street, vendor

What are the keywords in the following sentence? An aged fire hydrant is covered with fuscia paint.
cover, hydrant, paint

What are the keywords in the following sentence? a plane comes into land are seen from the air
come, land, plane

What are the keywords in the following sentence? A plane is parked at a runway terminal
park, plane, terminal