Anchor: A white shaggy dog wants a bite of its owners ice cream cone.
Entailed: a dog wants a bite
Contradiction: the dog wants a drink of water
Contradiction: Workers eat lunch in a cafeteria.
Contradiction: Workers wear reflective vests when working near trains.
Contradiction: We'll need TVs for the rest of time. 
Contradiction: The girl wants to taste her milkshake.