Anchor: In addition, the government may seek to purchase goods and services from more than one source.
Entailed: Goods and services from more than a single source is what the government may be seeking.
Contradiction: A single, solitary provider of services is what the government seeks to maintain. 
Contradiction: He admits that he owns a sailboat.
Contradiction: I might go to one game in the year.
Contradiction: It's a shame that we don't have it here, even though we enrolled in countless classes.
Contradiction: The tri-county office will have a new deputy director.