confusing on one level or another , 
(ROOT (S (ADJP (JJ confusing) (PP (IN on) (NP (NP (CD one) (NN level)) (CC or) (NP (DT another))))) (, ,)))
(ROOT (S (ADJP (JJ ) (PP (IN ) (NP (NP (CD ) (NN )) (CC ) (NP (DT ))))) (, )))