| http://www.w3.org/ns/prov#value | - Such a base may include inorganic bases as exemplified by alkali metals such as lithium, sodium and potassium, alkaline earth metals such as magnesium, and ammonium; and organic bases as exemplified by amines. [0057] The heterocyclic group may include groups corresponding to heterocyclic rings of 5 to 8 members, containing as a hetero-atom at least one atom selected from a nitrogen atom, an oxygen
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