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_41574 ( "Week of" text, "Tier" text, "Winner" text, "Runner-up" text, "Semi finalists" text )

### Question ###
What is Week, when Semi Finalists is Sandrine Testud Yone Kamio?

### Accurate SQL ###

SELECT "Week of" FROM table_41574 WHERE "Semi finalists" = 'sandrine testud yone kamio'