as temptingly easy as it would have been with this premise 
(ROOT (ADJP (ADJP (RB as) (RB temptingly) (JJ easy)) (SBAR (IN as) (S (NP (PRP it)) (VP (MD would) (VP (VB have) (VP (VBN been) (PP (IN with) (NP (DT this) (NN premise))))))))))
(ROOT (ADJP (ADJP (RB ) (RB ) (JJ )) (SBAR (IN ) (S (NP (PRP )) (VP (MD ) (VP (VB ) (VP (VBN ) (PP (IN ) (NP (DT ) (NN ))))))))))