CREATE TABLE table_name_70 (class_es_ VARCHAR, circuit VARCHAR)

What are the classes for the circuit that has the Mazda Raceway Laguna Seca race.
SELECT class_es_ FROM table_name_70 WHERE circuit = "mazda raceway laguna seca"
SELECT "class_es_" FROM "table_name_70" WHERE "circuit" = "mazda raceway laguna seca"