CREATE TABLE table_72842 ("Poll Year" TEXT, "Winner" TEXT, "Second" TEXT, "Third" TEXT, "Fourth" TEXT, "Fifth" TEXT, "Sixth" TEXT, "Seventh" TEXT, "Eighth" TEXT, "Ninth" TEXT, "Tenth" TEXT)

When the 8th is Marcos Hernandez who was the 6th?
SELECT "Sixth" FROM table_72842 WHERE "Eighth" = 'Marcos Hernandez'
SELECT "Sixth" FROM "table_72842" WHERE "Eighth" = 'Marcos Hernandez'