the cast , collectively a successful example of the lovable-loser protagonist 
(ROOT (NP (NP (DT the) (NN cast)) (, ,) (RRC (ADVP (RB collectively)) (NP (NP (DT a) (JJ successful) (NN example)) (PP (IN of) (NP (DT the) (NML (JJ lovable) (HYPH -) (NN loser)) (NN protagonist)))))))
(ROOT (NP (NP (DT ) (NN )) (, ) (RRC (ADVP (RB )) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (DT ) (NML (JJ ) (HYPH ) (NN )) (NN )))))))