Text: We have not seen anything that demonstrates that every coal-fired power plant would be able to achieve 90 percent source-specific controls for mercury by 2007, without considerable fuel switching, which would be very disruptive to our economy and undermine energy security.
Entailment: We haven't seen anything that shows that coal-fired plants can hit the goals.
Contradiction: Everything we've seen shows that coal-fired plants can hit the goals.