Anchor: One of the factors cited for the decline in personal mail volume is falling long distance telephone rates which have made telephone communication more affordable and fostered substitution of telephone calls for personal mail.
Entailed: One reason mail volume has declined is cheaper long distance calls.
Contradiction: One reason mail volume has declined is terrorist attacks.
Contradiction: What doesn't affect intervention?
Contradiction: A woman is playing an instrument.
Contradiction: A girl is sleeping on an airplane.
Contradiction: There are lamps above a man.