Text: By Wednesday morning we had received half a dozen e-mail messages from various readers establishing beyond question, with supportive documentation, that Amelio supported George Bush in 1992 and Bob Dole in 1996.
Entailment: Various readers provided supportive documentation to establish the fact that Amelio supported George Bush in 1992 and Bob Dole in 1996.
Contradiction: There was nothing provided that supported the fact that Amelio supported George Bush in 1992.