CREATE TABLE table_66912 ("Stage" TEXT, "Winner" TEXT, "General classification" TEXT, "Points classification" TEXT, "Mountains classification" TEXT, "Intergiro classification" TEXT, "Trofeo Fast Team" TEXT)

Who was the winner in stage 7 with a general classification of Pavel Tonkov?
SELECT "Winner" FROM table_66912 WHERE "General classification" = 'pavel tonkov' AND "Stage" = '7'
SELECT "Winner" FROM "table_66912" WHERE "General classification" = 'pavel tonkov' AND "Stage" = '7'