difficult to connect with on any deeper level 
(ROOT (ADJP (JJ difficult) (SBAR (S (VP (TO to) (VP (VB connect) (PP (IN with)) (PP (IN on) (NP (DT any) (JJR deeper) (NN level)))))))))
(ROOT (ADJP (JJ ) (SBAR (S (VP (TO ) (VP (VB ) (PP (IN )) (PP (IN ) (NP (DT ) (JJR ) (NN )))))))))