Anchor: If you want to sightsee in style (and expensively) you can even see Paris from a helicopter, plane, or hot-air balloon.
Entailed: You can see Paris from an aircraft although it would be expensive.
Contradiction: Seeing Paris from the air is forbidden.
Contradiction: Attila's Huns caused the fall of the Eastern empire.
Contradiction: It is something you should know.
Contradiction: People sitting in the audience at a baseball game.
Contradiction: It is an essential methodological feature of many case studies.