Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_29728787_1 (olivier VARCHAR, la_roche VARCHAR)
### Question:
When karl ridderbusch is the la roche who is the olivier?
### Answer:
SELECT olivier FROM table_29728787_1 WHERE la_roche = "Karl Ridderbusch"