Anchor: A man surfing on a green surfboard in a wave.
Entailed: A human surfing.
Contradiction: Nobody is surfing.
Contradiction: The systems are nearly impossible to be refined and even harder to implement.
Contradiction: The luxury items of Rome, Venice and Milan are unrivalled by those made anywhere else in the world. 
Contradiction: Conversation is unimportant.
Contradiction: Three people at a carnival