Anchor: A person on a downhill skateboard.
Entailed: a person on a skateboard
Contradiction: the person is asleep
Contradiction: The men are walking down the street.
Contradiction: I go for big things when I buy on impulse, like the time I bought a washer and dryer. 
Contradiction: A woman wrecks her bike.
Contradiction: A boy and a girl play on the beach.