Anchor: Someone doing a flipping trick on a red bicycle in front of a lot of people.
Entailed: Someone is riding a bicycle.
Contradiction: A man is walking his dog.
Contradiction: The men are playing basketball in the gym.
Contradiction: The Astronomer shouted, "Youth!"
Contradiction: Bush is telling them to follow the rules.
Contradiction: Chinese subtitles can be found over English-language films.