| http://www.w3.org/ns/prov#value | - Claim 2 of all the requests are identical with claim 2 maintained by the decision of the opposition division.Claim 1 of the main request differs from claim 1 maintained by the decision of the opposition division in that the expression where A is a mixture of at least one of Mg and Ca an at least one of Sr and Ba is replaced bywhere A is a mixture of:(1) Ca and Sr and at least one of Mg and Ba,
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