Anchor: Depending on their respective objectives and features, contractual arrangements of this kind have been labeled contract rates, negotiated service agreements, or more recently, niche classifications.
Entailed: Negotiated service agreements are a type of contractual arrangement.
Contradiction: Niche classifications are the oldest type of contractual arrangement.
Contradiction: Everyone wears roller skates on campus. 
Contradiction: I realize we can't peoples' work for granted, having been to some Big Name schools. 
Contradiction: Two kids are painting pictures.
Contradiction: He didn't know a lot.