CREATE TABLE table_42731 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "To par" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

What is the Margin of victory on 27 feb 2011?
SELECT "Margin of victory" FROM table_42731 WHERE "Date" = '27 feb 2011'
SELECT "Margin of victory" FROM "table_42731" WHERE "Date" = '27 feb 2011'