Complex sentence: Adam Lerner has been the Executive Director of The Laboratory of Art and Ideas at Belmar since May 2004, as well as Affiliate Curator for Experimental Programs at the Denver Art Museum.
Split into simpler sentences: Adam Lerner has been the Executive Director of The Laboratory of Art and Ideas at Belmar since May 2004. In addition to being the Executive Director of The Lab at Belmar, Adam Lerner is Affiliate Curator for Experimental Programs at the Denver Art Museum.