Anchor: Although these advances promise to streamline federal operations and improve the delivery of federal services, they also expose these activities to greater risks.
Entailed: These advances will expose the delivery of federal services to greater risks.
Contradiction: These advances will reduce the exposure of federal operations to greater risk.
Contradiction: The people are walking calmly
Contradiction: The patients were more likely to be young men with low incomes. 
Contradiction: Two people are walking in an office.
Contradiction: Exchange transaction is a transaction from each party sacrificing and receiving value