Anchor:  Professor Michael S. Hart is the originator of the Project Gutenberg-tm concept of a library of electronic works that could be freely shared with anyone.
Entailed: Michael S. Hart started the Project Gutenberg-tm concept.
Contradiction: No one participated in the project.
Contradiction: the dog eats pizza
Contradiction: Two motorists are riding along on their vehicle that is oddly designed
Contradiction: he is using the port-a- potty in the woods
Contradiction: Three puppies are playing outside.