Complex sentence: With nothing else to do, she decides to volunteer at a local veteran's hospital motivated by her bohemian friend Vi Munson, whose brother Billy has come home after just two weeks in Vietnam with grave emotional problem and now resides in the VA hospital.
Split into simpler sentences: With nothing else to do, she decides to volunteer at a local veteran's hospital. This, in part, is motivated by her bohemian friend Vi Munson, whose brother Billy has come home after just two weeks in Vietnam with grave emotional problems and now resides in the VA hospital.