collapses into an inhalant blackout , maintaining consciousness just long enough to achieve callow pretension 
(ROOT (VP (VBZ collapses) (PP (IN into) (NP (DT an) (NN inhalant) (NN blackout))) (, ,) (S (VP (VBG maintaining) (NP (NN consciousness)) (ADVP (RB just) (RB long) (RB enough) (S (VP (TO to) (VP (VB achieve) (NP (JJ callow) (NN pretension))))))))))
(ROOT (VP (VBZ ) (PP (IN ) (NP (DT ) (NN ) (NN ))) (, ) (S (VP (VBG ) (NP (NN )) (ADVP (RB ) (RB ) (RB ) (S (VP (TO ) (VP (VB ) (NP (JJ ) (NN ))))))))))