CREATE TABLE table_35912 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Stadium" CLOB, "Record" CLOB, "Attendance" FLOAT)

What opponent has balboa stadium as the opponent?
SELECT "Opponent" FROM table_35912 WHERE "Stadium" = 'balboa stadium'
SELECT "Opponent" FROM "table_35912" WHERE "Stadium" = 'balboa stadium'