         Sentence. 1: What” percentage .’ of:  electricity was- made.-* by «steam  turbine.in.the 1990s?    Sentence... 2:. “In- . “electricity  production;..-the “high. speed —: of  turbine rotation-.matches ‘well: with  the . speed ‘of ° modern... electric  generators, which are. typically.  direct connected tov their “driving  turbines.    