Taken at Amsterdam Biennale 2009 Taipei pavilion. Kai Ting Ling, Tsai Cheng and XAN have recreated the unique Taiwanese experience of the "betelnut bar" phenomenon for the Amsterdam Biennale. Taipei pavilion. Kai Ting Ling, Tsai Cheng and XAN have recreated the unique Taiwanese experience of the "betelnut bar" phenomenon for the Amsterdam Biennale.