Anchor: Thus, the analysis requires a distribution of outbound mail by weight interval.
Entailed: The outbound mail are distributed by weight interval. 
Contradiction: The letters are distributed by the length of their contents. 
Contradiction: The dogs are sleeping on the rug.
Contradiction: There was an economic recession in the 1990s.
Contradiction: The man cannot walk.
Contradiction: Avril Lavigne holding a microphone.