Anchor: A man is on a canoe in a pond.
Entailed: He is in the pond.
Contradiction: He is on a boat.
Contradiction: They hate each other.
Contradiction: A man is eating and has something for sale and is on some train tracks.
Contradiction: A son and his father are shopping in the mall for a new skateboard helmet.
Contradiction: The volcano is still active, and the surrounding areas experience earthquakes.