Anchor: A woman in a red dress is singing on a stage next to three men playing instruments.
Entailed: There are people on the stage.
Contradiction: A woman is washing her car.
Contradiction: If you friend gives you an imprecise URL you can go directly to it. 
Contradiction: We've already done it thanks.
Contradiction: Easter Day falls on the summer months.
Contradiction: There are several people in this picture, and they are all inside.