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_43263 ( "Week of" text, "Tier" text, "Winner" text, "Runner-up" text, "Semi finalists" text )

### Question ###
Who were the semi finalists when the runner-up was Alexandra Fusai Wiltrud Probst?

### Accurate SQL ###

SELECT "Semi finalists" FROM table_43263 WHERE "Runner-up" = 'alexandra fusai wiltrud probst'