Anchor: A tan dog is running along a river.
Entailed: A dog is running along a river.
Contradiction: The dog is drowning in the river.
Contradiction: The men are on Mars.
Contradiction: There are a couple of problems regarding the value of time.
Contradiction: Adults have never really cared about how teenagers interact with one another and communicate.
Contradiction: Disruptions might be caused which relate to computer security risks.