Complex sentence: The girl's basketball team has also won state championships in 1990,1992,1993,2005, and 2007, and were also runners up in 2003 and 2006.
Split into simpler sentences: The girl's basketball team has also won many state championships, in 1990,1992,1993,2005, and 2007. They were also runners up in 2003 and 2006.