Anchor: when he first made sounds that you could detect they were in the scale the music scale
Entailed: You could detect his first sound sin the music scale.
Contradiction: His sound was really off-key and you couldn't detect any melody. 
Contradiction: The WTO cannot make tariff decisions.
Contradiction: A man steps into a cooler.
Contradiction: Two people waiting in line for food at a crowded restaurant.
Contradiction: The old settlements were built with little backing.