Anchor: Johnny had slumped forward, his head on the table encircled by his limp arms.
Entailed: Johnny's head and arms were on the table. 
Contradiction: With his head straight and his arms firmly at his side, Johnny stood at the table.
Contradiction: A man and woman are skydiving.
Contradiction: He asked Tuppence to turn.
Contradiction: A dog is playing with a cat.
Contradiction: Two ladies in differently colored jackets are near each other.