engages us in constant fits of laughter , until we find ourselves surprised at how much we care about the story 
(ROOT (S (VP (VBZ engages) (NP (PRP us)) (PP (IN in) (NP (NP (JJ constant) (NNS fits)) (PP (IN of) (NP (NN laughter))))) (, ,) (SBAR (IN until) (S (NP (PRP we)) (VP (VBP find) (S (NP (PRP ourselves)) (ADJP (JJ surprised) (PP (IN at) (SBAR (WHADVP (WRB how) (JJ much)) (S (NP (PRP we)) (VP (VBP care) (PP (IN about) (NP (DT the) (NN story)))))))))))))))
(ROOT (S (VP (VBZ ) (NP (PRP )) (PP (IN ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (NN ))))) (, ) (SBAR (IN ) (S (NP (PRP )) (VP (VBP ) (S (NP (PRP )) (ADJP (JJ ) (PP (IN ) (SBAR (WHADVP (WRB ) (JJ )) (S (NP (PRP )) (VP (VBP ) (PP (IN ) (NP (DT ) (NN )))))))))))))))