Anchor: It was up to me to figure out how.
Entailed: I had to figure it out.  
Contradiction: It was not up to me to find out how.  
Contradiction: Dogs outside near a multiple vendor booths.
Contradiction: The man was bit more than middle-aged, and appeared very shady.
Contradiction: I worked in the electronics industry before I was ever in the retail business.
Contradiction: The old man is outside.