Anchor: A man with a surfboard is walking his dog as he walks down the beach.
Entailed: A surfer is walking his dog on the beach.
Contradiction: A surfer is surfing with his dog.
Contradiction: The boy is sitting in church.
Contradiction: An artist at work.
Contradiction: A boy gingerly tiptoes past his sleeping mother.
Contradiction: I wouldn't want to catch fish in water that murky.