human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Year, Mens singles, Womens singles, Mens doubles, Womens doubles, Mixed doubles
###Question: In 2004, where the womens singles is daniela kressig who is the mens singles
gpt
SELECT Mens singles FROM table WHERE Womens singles = Daniela Kressig