| http://www.w3.org/ns/prov#value | - t, power and other purposes, or transacting any or all of such business, provided that at least 75 percent of the gross operating revenues of any such corporation are derived from such business and that not more than 15 percent of the gross operating revenues are derived from any one kind of business other than supplying electricity or gas or electricity and gas, and provided further that such cor
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