Anchor: Postal Service and in that sense it is an upper bound.
Entailed: It is the upper boundary.
Contradiction: It is used as a lower boundary.
Contradiction: The pet is playing in the mud with the two little girls.
Contradiction: The amount of jealousy is small but I admit it was rather transparent an effort to get credibility. 
Contradiction: a guy on a bike
Contradiction: The elderly man is playing music.