Anchor: Two dogs play in a river, one is making a splash.
Entailed: The animals are in the water.
Contradiction: The animals are on the sandy beach.
Contradiction: There are no young girls and boys killing anyone.  
Contradiction: The most ornately-designed tomb houses the wife of Ramses II, Queen Nefertari. 
Contradiction: Fort-de-France was given its name by George Patton.  
Contradiction: They would be strengthened by the fact that all tax increases should be broad-based.