Anchor: One of the factors affecting the demand for mail services is the number of households.
Entailed:  One of the factors affecting the demand for mail services is the number of households.
Contradiction:  One of the factors affecting the demand for mail services is not the number of households.
Contradiction: The dogs are climbing up a mountain.
Contradiction: The construction workers are looking at something interesting.
Contradiction: the boy in a blue shirt
Contradiction: Tommy said that you were very accurate.