Anchor: A man in a bright yellow jacket is wearing a helmet.
Entailed: The man wearing a helmet has a yellow jacket on.
Contradiction: The woman is wearing a helmet.
Contradiction: A young couple take the stairs.
Contradiction: the men are watching people play chess
Contradiction: The Peninsula Hotel is on one end of the city while the cultural center is on the other end. 
Contradiction: You two should stay in town tonight.