Instruct: Classify Amazon reviews into positive or negative sentiment
Query: how's your life force going!

Great quick read! A wife discovers that her professor husband is cheating on her with one of his students so she decides to get her own back! She grabs the first available toy boy, and seizes the opportunity to strengthen her life force and liberate all her friends along the way.Extremely witty, gotta love good old Aunt Sarah who seems to have a terribly strong life force, despite her 90 odd years. A treat to read in between Philippa Gregory's other books!