Anchor: A man in a black wetsuit rides a wave with his dog on the surfboard.
Entailed: A man in a black wetsuit surfs with his dog
Contradiction: A man in a black wetsuit rides a wave with his cat on the surfboard.
Contradiction: I have never gotten a jury summons in my entire life. 
Contradiction: The men are wet.
Contradiction: The group is playing flag football outdoors.
Contradiction: Three workers are relaxing.