relies on subtle ironies and visual devices 
(ROOT (S (VP (VBZ relies) (PP (IN on) (NP (NP (JJ subtle) (NNS ironies)) (CC and) (NP (JJ visual) (NNS devices)))))))
(ROOT (S (VP (VBZ ) (PP (IN ) (NP (NP (JJ ) (NNS )) (CC ) (NP (JJ ) (NNS )))))))