Complex sentence: In 2002 the group monochrom (Johannes Grenzfurthner, Günther Friesinger etc.) teamed up with them and the small event became a big international festival presented at Vienna's Museumsquartier.
Split into simpler sentences: In 2002 the group monochrom (Johannes Grenzfurthner, Günther Friesinger etc.) teamed up with them. So the small event became a big international festival presented at Vienna's Museumsquartier.