Anchor: Geniuses slipping into madness also tend to disrobe in public (I learned this from a volume on chess prodigies, who have a proclivity for disrobing on public buses).
Entailed: A volume on chess prodigies mentions they have a tendency to disrobe in public.
Contradiction: Geniuses disrobing in public was the only way to prove their sanity.
Contradiction: Greuze told me I couldn't look around.
Contradiction: Ron Brown might have been a victim. 
Contradiction: A musician plays a black guitar, laughing jovially with his friends.
Contradiction: The three boys are outdoors.