an hour and a half of joyful solo performance . 
(ROOT (NP (NP (DT an) (NN hour) (QP (CC and) (DT a) (NN half))) (PP (IN of) (NP (JJ joyful) (JJ solo) (NN performance))) (. .)))
(ROOT (NP (NP (DT ) (NN ) (QP (CC ) (DT ) (NN ))) (PP (IN ) (NP (JJ ) (JJ ) (NN ))) (. )))