Anchor: The 90 percent source-specific control for mercury is also problematic.
Entailed: There are problems with the 90 percent source specific control for mercury.
Contradiction: The 10 percent source specific control for mercury was found to be perfectly safe and not at all problematic.
Contradiction: Two men look angry at each other.
Contradiction: the women are sitting on the ski lift
Contradiction: She is not due till three months from now.
Contradiction: There are several small towns in the interior of Mallorca.