the visuals , even erotically frank ones , become dullingly repetitive 
(ROOT (S (NP (NP (DT the) (NNS visuals)) (, ,) (NP (ADVP (RB even) (RB erotically) (JJ frank)) (NNS ones)) (, ,)) (VP (VBN become) (ADJP (RB dullingly) (JJ repetitive)))))
(ROOT (S (NP (NP (DT ) (NNS )) (, ) (NP (ADVP (RB ) (RB ) (JJ )) (NNS )) (, )) (VP (VBN ) (ADJP (RB ) (JJ )))))