Anchor: I fear that a certain software billionaire may be a nut job.
Entailed: I am afraid that a software billionaire may be crazy.
Contradiction: I think this software billionaire is completely sane. 
Contradiction: Wrong that is nothing like a doctor at a grocery store. 
Contradiction: The people are in the water.
Contradiction: The old married couple hold hands on the open beach.
Contradiction: Some people are wearing vests and working.