CREATE TABLE table_38535 ("Game" TEXT, "Date" TEXT, "Referee" TEXT, "Umpire" TEXT, "Head Linesman" TEXT, "Line Judge" TEXT, "Field Judge" TEXT, "Back Judge" TEXT)

Who is the head linesman at game xxxv?
SELECT "Head Linesman" FROM table_38535 WHERE "Game" = 'xxxv'
SELECT "Head Linesman" FROM "table_38535" WHERE "Game" = 'xxxv'