in this junk that 's tv sitcom material at best 
(ROOT (PP (IN in) (NP (NP (DT this) (NN junk)) (SBAR (WHNP (WDT that)) (S (VP (VBZ 's) (NP (NML (NN tv) (NN sitcom)) (NN material)) (ADVP (IN at) (JJS best))))))))
(ROOT (PP (IN ) (NP (NP (DT ) (NN )) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (NP (NML (NN ) (NN )) (NN )) (ADVP (IN ) (JJS ))))))))