CREATE TABLE table_50537 ("Season" TEXT, "Skip" TEXT, "Third" TEXT, "Second" TEXT, "Lead" TEXT)

What is the lead with a second of Vicki Adams and a third of Anna Sloan?
SELECT "Lead" FROM table_50537 WHERE "Second" = 'vicki adams' AND "Third" = 'anna sloan'
SELECT "Lead" FROM "table_50537" WHERE "Second" = 'vicki adams' AND "Third" = 'anna sloan'