spreading a puritanical brand of christianity 
(ROOT (S (VP (VBG spreading) (NP (NP (DT a) (JJ puritanical) (NN brand)) (PP (IN of) (NP (NN christianity)))))))
(ROOT (S (VP (VBG ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NN )))))))