offended by his lack of faith in his audience 
(ROOT (S (VP (VBN offended) (PP (IN by) (NP (NP (PRP$ his) (NN lack)) (PP (IN of) (NP (NP (NN faith)) (PP (IN in) (NP (PRP$ his) (NN audience))))))))))
(ROOT (S (VP (VBN ) (PP (IN ) (NP (NP (PRP$ ) (NN )) (PP (IN ) (NP (NP (NN )) (PP (IN ) (NP (PRP$ ) (NN ))))))))))