Anchor: It must read the mail, look up the ZIP Code for the address, spray on the barcode, and proceed to do the sorting, probably to the five digit level.
Entailed: It needs to spray on the barcode.
Contradiction: It does not have to read the mail.
Contradiction: There is no integrated planning model.
Contradiction: It's your turn. 
Contradiction: Learned to hate the small town with its car dealerships and bushes on the streets.
Contradiction: a child disobeys a sign.