user: Question: What is the GP winner with a place of Genk, with race winners Ben Adriaenssen / Ben van den Bogaart?
Columns: ['Date', 'Place', 'Race winners', 'GP winner', 'Source']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1 April', 'Frauenfeld', 'Ben Adriaenssen / Ben van den Bogaart', 'Ben Adriaenssen / Ben van den Bogaart', 'Result']
SQL:

assistant: SELECT "GP winner" FROM "Table" WHERE "Place" = 'Genk' AND "Race winners" = 'Ben Adriaenssen / Ben van den Bogaart';