Anchor: The man is teaching the others about the piano.
Entailed: The man is teacher.
Contradiction: The man is fixing the pipes.
Contradiction: We left north Potomac a while ago, I can't remember exactly when.
Contradiction: Management reform might come from various sources within any federal agency.
Contradiction: Hospitals and other related institutions do not have standard guidelines in doing things. 
Contradiction: A man is near an arch.