Anchor: I ignored his attempts at conversation.
Entailed: I was not paying attention to him. 
Contradiction: I spoke to him every chance I could get. 
Contradiction: Silicon Valleys only exist in big American cities that have great universities.
Contradiction: He did not spend enough time researching on the matter. 
Contradiction: A man is skipping in a field of flowers
Contradiction: A guy with eye correction plays an instrument.