Anchor: A young lady in a red dress plays an interesting instrument.
Entailed: A young lady is wearing a red dress.
Contradiction: A young man plays the piano in a bar.
Contradiction: Is the problem better now? 
Contradiction: Many people are buying olives at a market.
Contradiction: Energy and Resource Consultants, inc have not prepared anything.
Contradiction: We had contacted the company before April 2011.