clips of a film that are still looking for a common through-line 
(ROOT (NP (NP (NP (NNS clips)) (PP (IN of) (NP (DT a) (NN film)))) (SBAR (WHNP (WDT that)) (S (VP (VBP are) (ADVP (RB still)) (VP (VBG looking) (PP (IN for) (NP (DT a) (JJ common) (IN through) (HYPH -) (NN line)))))))))
(ROOT (NP (NP (NP (NNS )) (PP (IN ) (NP (DT ) (NN )))) (SBAR (WHNP (WDT )) (S (VP (VBP ) (ADVP (RB )) (VP (VBG ) (PP (IN ) (NP (DT ) (JJ ) (IN ) (HYPH ) (NN )))))))))