Complex sentence: The musician John Lennon, and his wife, Yoko Ono, both went through Primal Therapy in 1970, and shortly afterward Lennon produced his album, "John Lennon/Plastic Ono Band".
Split into simpler sentences: The musician John Lennon, and his wife, Yoko Ono, both went through Primal Therapy in 1970. Shortly afterward Lennon produced his album, "John Lennon/Plastic Ono Band".