Anchor: There is a man in an orange shirt playing tennis.
Entailed: Someone is playing tennis.
Contradiction: A man is watching a tennis match.
Contradiction: The people are running through the maze.
Contradiction: A kayak with a man in it is being pushed around by rough waters.
Contradiction: The woman is working out at the gym.
Contradiction: I have noticed that technical literature mentions both metric units and the English equivalent.