borders on rough-trade homo-eroticism 
(ROOT (NP (NP (NNS borders)) (PP (IN on) (NP (NML (JJ rough) (HYPH -) (NN trade)) (NN homo) (HYPH -) (NN eroticism)))))
(ROOT (NP (NP (NNS )) (PP (IN ) (NP (NML (JJ ) (HYPH ) (NN )) (NN ) (HYPH ) (NN )))))