Anchor: I happened to notice that it was bolted.
Entailed: I knew myself that the door was bolted. 
Contradiction: I knew myself that the door was open. 
Contradiction: The caves are where people go parasailing.
Contradiction: It is hard to decide the instruments most suitable for Beethoven's keyboard music.
Contradiction: Figure 3.1 is a line graph showing the relationship between capital gains taxes and productivity.
Contradiction: Endpoint Pollutant Valuation each case a measurement