Anchor: Two dogs are playing; one is catching a Frisbee.
Entailed: Two animals are playing with a frisbee.
Contradiction: Two dogs are inside sleeping.
Contradiction: He definitely uses narrative form all the time, I know already.
Contradiction: Gao is accountable in helping congress oversee programs. 
Contradiction: A dog jumping a hurdle.
Contradiction: Cuba is a colony of Spain.