CREATE TABLE table_50536 ("Season" TEXT, "Skip" TEXT, "Third" TEXT, "Second" TEXT, "Lead" TEXT)

What is the skip that has a third of Anna Sloan in season 2012-13?
SELECT "Skip" FROM table_50536 WHERE "Third" = 'anna sloan' AND "Season" = '2012-13'
SELECT "Skip" FROM "table_50536" WHERE "Season" = '2012-13' AND "Third" = 'anna sloan'