Anchor: A backhoe is digging a trench outside of a building.
Entailed: A trench is being dug.
Contradiction: A backhoe is parked next to a truck.
Contradiction: System dispatch determines how best to eliminate the resources.
Contradiction: A dog is running in the grass.
Contradiction: A boy is sitting on a bed.
Contradiction: A new nitrogen oxides trading program starts January 1.