Anchor: If the questions and answers were formulated more precisely, the site could make for a fascinating exercise.
Entailed: The site could make for a great exercise of the questions and answer were formulated better. 
Contradiction: The website class is very confusing.
Contradiction: The real explanation has nothing to do with the frog-in-boiling-water phenomenon.
Contradiction: A man is playing hockey.
Contradiction: A man is wearing a dragon suit in front of the store.
Contradiction: Two women are resting.