Anchor: They want blood and they will wait until they can go north to get it.
Entailed: They will wait until they can go north to get blood.
Contradiction: They will get blood now instead of waiting until they can go north.
Contradiction: Five men are skydiving.
Contradiction: The elephant is accompanied by two men.
Contradiction: Some people are learning to waterski.
Contradiction: Whoever that woman was, now, obviously, she was saved.