| http://www.w3.org/ns/prov#value | - tero atoms selected from an oxygen atom, a sulfur atom and a nitrogen atom (this aromatic heterocyclic group may have 1 to 3 substituents selected from the above-described substituent group A), (d) ???O???, (e) ???S???, (f) ???CO???NH??? or (g) ???NH???CO???, n is an integer of 0 to 3, M is an amino group, a guanidino group, a sulfamoyl group, a carbamoyl group or a hydroxy group (provided that wh
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