CREATE TABLE table_58351 ("Date" TEXT, "Tournament" TEXT, "Winning score" TEXT, "Margin of victory" TEXT, "Runner-up" TEXT)

what is the margin of victory for the waste management phoenix open tournament?
SELECT "Margin of victory" FROM table_58351 WHERE "Tournament" = 'waste management phoenix open'
SELECT "Margin of victory" FROM "table_58351" WHERE "Tournament" = 'waste management phoenix open'