Anchor: Some people in medieval costume are walking through a crowded street.
Entailed: The people in costumes are on the street.
Contradiction: The people in costumes are riding a bus.
Contradiction: The beach flags do not provide any safety.
Contradiction: Maybe she had been awake.
Contradiction: HIV cannot be traced from chimps to humans. 
Contradiction: The stars of the flag, the hardest part to paint, is what she is currently working on.