Anchor: A man wearing shorts and a long-sleeved orange shirt, a woman wearing pink shorts and a long-sleeved white shirt, and two women wearing black shorts, yellow t-shirts, and white hats participate in an organized race.
Entailed: A group of four people is racing.
Contradiction: The group of people is sitting around while playing cards.
Contradiction: Two people with their feet in the air.
Contradiction: The institute was founded to battle the bubonic plague.
Contradiction: The men were only intimate while having sex. 
Contradiction: A man standing near a memorial near the water