Text: 6 percent in 1997.NHH-to-NHH (business mail) is the only sector of First-Class Mail that has experienced healthy growth in the 90s.
Entailment: There is only one sector of First-Class Mail that has experienced a healthy growth in the 90s.
Contradiction: NHH-to-NHH (business mail) knew a growth in the 90s of 15 percent.