Anchor: 1 The existing program establishes a cap on SO2 emissions to ensure that the environmental goal is met, and employs an innovative market-based allowance trading program to achieve the goal at lowest cost.
Entailed: There is a cap on SO2.
Contradiction: There is no cap on SO2.
Contradiction: Two people walk in the grass.
Contradiction: A couple dressed in black and white are skirting along a barbed wire fence.
Contradiction: Yes, perhaps once every decade.
Contradiction: I would be hit by an axe this time instead of a club.