Anchor: An over weight man wearing overalls and a helmet rides down the sidewalk on his Segway.
Entailed: Overweight man riding a Segway.
Contradiction: The man is ordering ice cream from a street vendor.
Contradiction: The man is wearing a t-shirt and jeans.
Contradiction: It's fine just staying by the dock. 
Contradiction: There are people getting on a train.
Contradiction: A pigeon on a street corner.