, then you 're in for a painful ride . 
(ROOT (S (, ,) (ADVP (RB then)) (NP (PRP you)) (VP (VBP 're) (PP (RB in) (PP (IN for) (NP (DT a) (JJ painful) (NN ride))))) (. .)))
(ROOT (S (, ) (ADVP (RB )) (NP (PRP )) (VP (VBP ) (PP (RB ) (PP (IN ) (NP (DT ) (JJ ) (NN ))))) (. )))