Anchor: The mountain biker is about to go off a big jump in the canyon that is full of trees.
Entailed: The athlete is going to leap across the chasm.
Contradiction: The athlete is going to leap across the chasm in his living room.
Contradiction: I want you to dismantle it.
Contradiction: A man is sitting.
Contradiction: I heard a knocking sound.
Contradiction: The people are walking.