Anchor: A young boy skipping down a tennis court in absolute glee.
Entailed: A young boy is on a tennis court.
Contradiction: A young boy is playing baseball.
Contradiction: The cyclists in their tight spandex are driving by the construction site.
Contradiction: They are engaged by the games
Contradiction: The point was not taken. 
Contradiction: Yes sir and you were unable to acquire them to your location.