CREATE TABLE table_41544 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner ( s ) -up" TEXT)

What is the margin of victory that has masters gc ladies as the tournament?
SELECT "Margin of victory" FROM table_41544 WHERE "Tournament" = 'masters gc ladies'
SELECT "Margin of victory" FROM "table_41544" WHERE "Tournament" = 'masters gc ladies'