| http://www.w3.org/ns/prov#value | - Examples of the esters are diphenyl carbonate, alkyl-substituted diphenyl carbonates, such as the di-toluyl carbonates, halogen-substituted diphenyl carbonates, such as the dichlorophenyl carbonates, dinaphthyl carbonate and alkyl-substituted and halogen-substituted dinaphthyl carbonates; in these, the nitro, alkyl or halogen substituents on the two phenyl nuclei or, respectively, the two naphthyl
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