if this is cinema , i pledge allegiance to cagney and lacey . 
(ROOT (S (SBAR (IN if) (S (NP (DT this)) (VP (VBZ is) (NP (NN cinema))))) (, ,) (NP (PRP i)) (VP (VBP pledge) (NP (NN allegiance)) (PP (IN to) (NP (NN cagney) (CC and) (NN lacey)))) (. .)))
(ROOT (S (SBAR (IN ) (S (NP (DT )) (VP (VBZ ) (NP (NN ))))) (, ) (NP (PRP )) (VP (VBP ) (NP (NN )) (PP (IN ) (NP (NN ) (CC ) (NN )))) (. )))