Anchor: You may not believe that such intervention will work in practice, but that's a judgment about the rules of politics, not economics.
Entailed: Your judgment is about politics, not about economics.
Contradiction: You may believe that such interventions will work in practice, but that's a judgment about the rules of economics. 
Contradiction: Two ladies are at work in the cubicle farm hoping the day ends quickly.
Contradiction: a bird was on rocks
Contradiction: I have done about seven or eight.
Contradiction: A woman has white hair