a time machine , a journey back to your childhood , when cares melted away in the dark theater , 
(ROOT (NP (NP (DT a) (NN time) (NN machine)) (, ,) (NP (NP (DT a) (NN journey)) (ADVP (RB back) (PP (IN to) (NP (NP (PRP$ your) (NN childhood)) (, ,) (SBAR (WHADVP (WRB when)) (S (NP (NNS cares)) (VP (VBD melted) (ADVP (RB away)) (PP (IN in) (NP (DT the) (JJ dark) (NN theater)))))))))) (, ,)))
(ROOT (NP (NP (DT ) (NN ) (NN )) (, ) (NP (NP (DT ) (NN )) (ADVP (RB ) (PP (IN ) (NP (NP (PRP$ ) (NN )) (, ) (SBAR (WHADVP (WRB )) (S (NP (NNS )) (VP (VBD ) (ADVP (RB )) (PP (IN ) (NP (DT ) (JJ ) (NN )))))))))) (, )))