Anchor: I lay down on the bed again, and by and by Mrs. Vandemeyer brought me some supper.
Entailed: Mrs. Vandemeyer brought me some food.
Contradiction: I lay down and fell asleep, and no one brought me anything. 
Contradiction: The elephant is attacking the lion.
Contradiction: Two girls run down a road outside and see two animals.
Contradiction: We dump everything in one big bin in the front yard.
Contradiction: At one time the Labor Secretary was Robert Reich.