Complex sentence: Kennedy is a member of the Oregon School Activities Association (OSAA), offering a number of interscholastic varsity sports, including football, volleyball, cheerleading, boys and girls basketball, cross country, baseball, softball, and track and field.
Split into simpler sentences: Kennedy is a member of the Oregon School Activities Association (OSAA). It offers a number of interscholastic varsity sports, such as boys and girls basketball, football, volleyball, cross country, baseball, softball, and track and field.