Anchor: For purposes of city and rural delivery cost analysis, we present (1) a comparison using the actual labor costs of the two crafts, and (2) a comparison using the average labor costs of all Postal Service collective bargaining employees.
Entailed: They are comparing costs of labor for Postal employees.
Contradiction: This comparison of labor costs is about road construction in the city vs. the rural areas.
Contradiction: A man is playing the piano.
Contradiction: He stretched his legs out in the sun. 
Contradiction: A man sits in a barber chair getting a shave and a haircut.
Contradiction: Damn, that must have been annoying.