Juan Pierre laced a two-run triple a four-run seventh inning as the White Sox clipped the Cubs 6-4.  Alexei Ramirez belted a two-run homer in the seventh for the Sox, who have won three of the four meetings with their crosstown rivals this year.  Edwin Jackson lasted six innings to improve to 5-and-6.  Sergio Santos notched his 18th save.  Aramis Ramirez hit his 300th career homer and had two RBI for the Cubs.  Randy Wells allowed all six runs over six-and-a-third innings to fall to 1-and-3.