user: Question: Which treasurer has a Gen.-Secretary of Jonneke de Koning, and a Vice President of Laura Tolen?
Columns: ['Year', 'President', 'Vice President', 'Gen.-Secretary', 'Treasurer']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['2013-2014', 'Oskar Salmhofer', 'Stephanie Moyaert', 'Marta Tomczyk', 'Tim Kowalke']
SQL:

assistant: SELECT "Treasurer" FROM "Table" WHERE "Gen.-Secretary" = 'Jonneke de Koning' AND "Vice President" = 'Laura Tolen';