Anchor: A flat-rate competitor would present an attractive proposition to Joe Avid and anybody else with heavier-than-average usage.
Entailed: Joe Avid would be offered an attractive flat-rate.
Contradiction: Flat-rates would not be a good deal for Joe Avid.
Contradiction: a black haired child plays with apples
Contradiction: The cover story is not enthusiastic about the SAT prep industry.
Contradiction: The people were not curious about Clinton's future whereabouts. 
Contradiction: Slate writer Mickey Kaus summons them.