in which most of the characters forget their lines 
(ROOT (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (NP (JJS most)) (PP (IN of) (NP (DT the) (NNS characters)))) (VP (VBP forget) (NP (PRP$ their) (NNS lines))))))
(ROOT (SBAR (WHPP (IN ) (WHNP (WDT ))) (S (NP (NP (JJS )) (PP (IN ) (NP (DT ) (NNS )))) (VP (VBP ) (NP (PRP$ ) (NNS ))))))