Anchor: Throughout its history, the Postal Service has backed away from constraints on the dimensions and characteristics of pieces that can be mailed.
Entailed: The Postal Service backed away from the size rules for things that were mailed.
Contradiction: The Postal Service strictly enforced the size rules for things that were mailed.
Contradiction: A man gives a thumbs up as prepares to do a cliff dive.
Contradiction: A picture of school children are in a dark room.
Contradiction: A person doing pushups in a leotard.
Contradiction: They are being careful.