Text: We have not modeled the specific provisions in S. 556, but useful information is provided by comparing the analyses EPA and EIA conducted to respond to a request from Senators Smith, Voinovich and Brownback with the analyses responding to a request from Senators Jeffords and Lieberman.
Entailment: You can get useful information by comparing the analyses EPA and EIA conducted.
Contradiction: Senator Jeffords did not request anything.