| http://www.w3.org/ns/prov#value | - an oligosaccharide, phosphorylated saccharides, arylacyl, alkylene, heterocyclic and polycyclic; and R, R1, R2, R3, R1, R2 and R3, when attached to a carbon atom are selected from the group consisting of H, hydroxy, nitro, cyano, halogen, COOH, SO3 H, CH2 SO2 NH2, trifluoroacetyl, an acid group of the structure ZOq Hr wherein Z is an element selected from the group consisting of carbon, sulfur, b
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