Anchor: Mailers are now presorting their mail, barcoding their mail, changing flat-size pieces into letter-size pieces, consolidating their mail, and carrying their mail great distances in order to enter it at specific locations.
Entailed: Presorting and barcoding mail are two things that mailers now do.
Contradiction: Mailers are no presorting their mail but they aren't barcoding their mail.
Contradiction: I think dogs are cats were meant to be free in the wild. 
Contradiction: The best time to visit the island is during the celebration of the major festivals.
Contradiction: The  children are swinging
Contradiction: There are situations in which decision makers may decide not to go forward with the development.