Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_187239_1 ( secondary_sponsor VARCHAR, main_sponsor VARCHAR )

### Question ###
When olympikus is the main sponsor who is the secondary sponsor?

### Accurate SQL ###

SELECT secondary_sponsor FROM table_187239_1 WHERE main_sponsor = "Olympikus"