Anchor: A roof is being torn apart by one person.
Entailed: One guy is taking the roof apart.
Contradiction: The guy is digging a hole to install a swimming pool.
Contradiction: The girl is doing gymnastics.
Contradiction: He is the director of the comparative citizenship project at the carnegie endowment for international peace. 
Contradiction: I had to rush to the doctor's office last month because of a bad cold.
Contradiction: "Investigate the coffee cups immediately!", he said.