CREATE TABLE table_27137 ("Round" CLOB, "Circuit" CLOB, "Date" CLOB, "Class A Winner" CLOB, "Class B Winner" CLOB, "Class C Winner" CLOB, "Class D Winner" CLOB)

What was the circuit in round 2?
SELECT "Circuit" FROM table_27137 WHERE "Round" = '2'
SELECT "Circuit" FROM "table_27137" WHERE "Round" = '2'