| http://www.w3.org/ns/prov#value | - wherein M3 represents at least one-member selected from the group consisting of Si, Ge, Pb, P, B, and Al, preferably Si, Ge, P, B, and Al, and particularly preferably Si, P, B, and Al; M5 represents at least one member selected from the group consisting of Li, Na, K, Rb, Cs, Mg, Ca, Sr, and Ba, preferably Cs and Mg, and particularly preferably Mg; M7 represents at least one member selected from th
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