Anchor: Young dirt bikers try to get a dirt bike up a sandy hill.
Entailed: Young dirt bikers are riding bikes
Contradiction: The dirt bikers are old.
Contradiction: Inbound mail can be seen as a separate class of mail.
Contradiction: A man sits on a wooden chair.
Contradiction: A man is by himself on the couch.
Contradiction: The sunsets in Negril are amazing right before one goes into town for the night.