CREATE TABLE table_55582 ("Party" TEXT, "Results 2004" TEXT, "CSA 5/28/09" TEXT, "Ifop 5/30/09" TEXT, "Ipsos 5/30/09" TEXT, "BVA 6/1/09" TEXT, "TNS-Sofres 6/2/09" TEXT, "OpinionWay 6/3/09" TEXT, "Ipsos 6/3/09" TEXT, "TNS-Sofres 6/4/09" TEXT, "CSA 6/4/09" TEXT, "Ifop 6/4/09" TEXT)

What's the TNS-Sofres when Ipsos was 27%?
SELECT "TNS-Sofres 6/2/09" FROM table_55582 WHERE "Ipsos 6/3/09" = '27%'
SELECT "TNS-Sofres 6/2/09" FROM "table_55582" WHERE "Ipsos 6/3/09" = '27%'