Complex sentence: She is also a member of the Brainstormers, a group of women artists whose performances address gender inequity in the American art world, known for their piece near the entrance of P.S.1 during the "Greater New York" show in 2005.
Split into simpler sentences: She is also a member of the Brainstormers, a group of women artists whose performances address gender inequity in the American art world. They are known for their piece near the entrance of P.S.1 during the "Greater New York" show in 2005.