think is supposed to be an attempt at hardass american but sometimes just lapses into unhidden british 
(ROOT (S (S (VP (VB think) (SBAR (S (VP (VBZ is) (VP (VBN supposed) (S (VP (TO to) (VP (VB be) (NP (NP (DT an) (NN attempt)) (PP (IN at) (NP (NN hardass) (JJ american))))))))))))) (CC but) (ADVP (RB sometimes)) (ADVP (RB just)) (VP (VBZ lapses) (PP (IN into) (NP (JJ unhidden) (NN british))))))
(ROOT (S (S (VP (VB ) (SBAR (S (VP (VBZ ) (VP (VBN ) (S (VP (TO ) (VP (VB ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NN ) (JJ ))))))))))))) (CC ) (ADVP (RB )) (ADVP (RB )) (VP (VBZ ) (PP (IN ) (NP (JJ ) (NN ))))))