[Dutch Prime Minister Wim Kok and his Finance Minister Gerrit Zalm ] faced a parliamentay grilling October 15 over the controversial purchase gift to the nation of Piet Mondriaan's last painting, Victory Boogie Woogie, pictured. The two ministers were to appear before parliament's finance amd cultural committees on Thursday afternoon to explain why the 80 million guilder ($40 million) aquisition was financed from central bank funds, in breach of audit rules.