Anchor: Students with backpacks are casually walking.
Entailed: The students are not in a hurry to get to their destination.
Contradiction: Two goldfish are riding bikes in a giant pile of mashed potatoes.
Contradiction: Who is Bill?
Contradiction: Many men were shot and killed.
Contradiction: Education and politics is what is constantly featured in local news. 
Contradiction: Two woorkers are trying to stop the water.