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_29225103_2 (ep_winning_team VARCHAR, cp_winning_team VARCHAR, gm_winning_team VARCHAR)

### Question ###
Who was the EP winning team when the CP winning team was Dave Clark and the GM winning team was Stuart Northrup?

### Accurate SQL ###

SELECT ep_winning_team FROM table_29225103_2 WHERE cp_winning_team = "Dave Clark" AND gm_winning_team = "Stuart Northrup"