Text: A University of Chicago study found that this type of household declined from 45 percent to 26 percent of the total between 1972 and 1998.
Entailment: This tipe of household declined between 1972 and 1998, according to a study of the University of Chicago.
Contradiction: This tipe of household declined between 1950 and 1960, according to a study of the University of Chicago.