Q: Keywords: city, highway, vehicle
What is a sentence that includes all these keywords?

A: heavy traffic with vehicles moving slowly on the highway in to the city during rush hour

Q: Keywords: fill, harbor, ship
What is a sentence that includes all these keywords?

A: A harbor filled with lots of different types and sizes of ships.

Q: Keywords: automobile, car, want
What is a sentence that includes all these keywords?

A:
automobile make wants a flying car to light the cauldron