Anchor: This implies that the surface mailstream is composed of flats and small packets.
Entailed: This means the surface mailstream includes small packets.
Contradiction: This means the surface mailstream does not include flats.
Contradiction: The people are filled with anger as they march boldly down the avenue.
Contradiction: Japanese depiction is that of a reserved nature. 
Contradiction: His birthday is tomorrow.  
Contradiction: Two men pushing a truck with a logo of a woman on it down a road.