Complex sentence: Idaho Falls High School has been known for it dominant wrestling team, winning state in 1997,1998,2006, and 2009, while placing 2nd in 2005,2007, and 2008.
Split into simpler sentences: Idaho Falls High School has been known for it dominate wrestling team, winning state in 1997,1998,2006, and 2009. While placing 2nd in 2005,2007, and 2008.