Anchor: Furthermore, the GOP's resignation-by-example argument has backfired.
Entailed: The GOP's argument backfired.
Contradiction: The GOP hasn't said anything at all. 
Contradiction: A tugboat is in dry dock awaiting repairs.
Contradiction: I've done both toll painting and still life painting.
Contradiction: It wasn't in the discount theater, so I had to watch it on video.
Contradiction: If it turns out that official productivity statistics understate the real rate of progress by 1 percent, then the official price statistics also overstate inflation by exactly the same amount.