Anchor: A man in a black shirt swims next to a girl on a pink surfboard.
Entailed: A man swims.
Contradiction: A man gets eaten by a shark.
Contradiction: The Mitsubishi Mirage I bought is a complete wreck and couldn't be harder to deal with. 
Contradiction: Gas prices go up and affect coal prices.
Contradiction: The farmhand removed his shirt in the hot sun.
Contradiction: The campers are around  fire pit