CREATE TABLE table_31320 ("Year" CLOB, "Conductor" CLOB, "Opera House or Orchestra" CLOB, "Label" CLOB, "Countess" CLOB, "Count" CLOB, "Flamand" CLOB, "Olivier" CLOB, "La Roche" CLOB, "Clairon" CLOB)

When karl ridderbusch is the la roche who is the olivier?
SELECT "Olivier" FROM table_31320 WHERE "La Roche" = 'Karl Ridderbusch'
SELECT "Olivier" FROM "table_31320" WHERE "La Roche" = 'Karl Ridderbusch'