Anchor: They do collapse on a long dive, but the viscera move into the space.
Entailed: They collapse on a long dive, but the internals move into the space anyway.
Contradiction: The entire unit is durable, and survives even the longest of dives.
Contradiction: The man is selling from inside walmart
Contradiction: There are three people on the water
Contradiction: No machine is expected to contain an optical character reader. 
Contradiction: A boy is sitting on a boat.