Text: In the period 1980 through 1986, for example, and again 1993 through 2000, the annual rate of decline was only 1.7 percent.
Entailment: The rate of decline each year was at 1.7 percent between 1980 and 1986.
Contradiction: Between 1985 and 1995, the rate of decline was 1.7 percent each year.