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_15001681_1 (mens_singles VARCHAR, womens_singles VARCHAR)

### Question ###
In 2004, where the womens singles is daniela kressig who is the mens singles

### Accurate SQL ###

SELECT mens_singles FROM table_15001681_1 WHERE womens_singles = "Daniela Kressig"