Text: 19The 3-year period coincides with federal surpluses and its use avoids extending the unusually low nonfederal saving rate of 2000 throughout the simulation period.
Entailment: The 3-year period coincides with federal surpluses and its use avoids extending the unusually low nonfederal saving rate of 2000 throughout the simulation period.
Contradiction: The 3-year period occurs at a separate time from federal surpluses.