Anchor: Two men sitting in a doorway working on something.
Entailed: Two people working on something in a doorway.
Contradiction: The people are taking a shower.
Contradiction: Jon was unprepared and had no weapon when the Voth showed up for a fight. 
Contradiction: The person was irrationally enthusiastic.
Contradiction: The horse is old and lame, not worth anything.
Contradiction: Pat Boone was an innovator in Christian Rock.