Anchor: One mechanic is sitting on the roof of a school bus with an open door, while the other is standing inside the bus.
Entailed: Two peole are at work.
Contradiction: Two mechanics are are working on an engine.
Contradiction: A mechanic is standing of the roof of a truck, another mechanics is in the cab of the truck.
Contradiction: The bus driver lets the kids off at the bus stop.
Contradiction: One mechanic is standing on the roof of the busy and the other it sitting down inside of it.
Contradiction: Eating lunch in an ambulance.