Anchor: These two cyclists ride side by side in an urban neighborhood.
Entailed: Two people ride their bikes together in a city.
Contradiction: The two cyclists rush down a mountain path.
Contradiction: There is no one in my department, including myself, that knows anything about PCs. 
Contradiction: Two men are in front of a building
Contradiction: Sather was visibly upset by what they said.
Contradiction: There is a decline in personal savings.