Anchor: Signatory countries will be prohibited from buying chemicals--those with only residual military use that are not banned--from nonsignatory countries.
Entailed: Signatory countries will be prohibited from buying chemicals from nonsignatory countries.
Contradiction: Signatory countries will be able to buy chemicals from whomever they please.
Contradiction: Signatory countries will be allowed to buy chemicals.
Contradiction: There are no chemical purchasing restrictions for signatory countries.
Contradiction: Three people are paving the area with concrete.
Contradiction: I like close games.