it 's a setup so easy it borders on facile , 
(ROOT (S (NP (PRP it)) (VP (VBZ 's) (NP (NP (DT a) (NN setup)) (ADJP (RB so) (JJ easy) (SBAR (S (NP (PRP it)) (VP (VBZ borders) (PP (IN on) (ADJP (NN facile))))))))) (, ,)))
(ROOT (S (NP (PRP )) (VP (VBZ ) (NP (NP (DT ) (NN )) (ADJP (RB ) (JJ ) (SBAR (S (NP (PRP )) (VP (VBZ ) (PP (IN ) (ADJP (NN ))))))))) (, )))