are as subtle and as enigmatic 
(ROOT (VP (VBP are) (ADJP (ADJP (RB as) (JJ subtle)) (CC and) (PP (IN as) (ADJP (JJ enigmatic))))))
(ROOT (VP (VBP ) (ADJP (ADJP (RB ) (JJ )) (CC ) (PP (IN ) (ADJP (JJ ))))))