it a step further , richer and deeper 
(ROOT (NP (NP (PRP it)) (ADVP (ADVP (NP (DT a) (NN step)) (RBR further)) (, ,) (ADJP (JJR richer) (CC and) (JJR deeper)))))
(ROOT (NP (NP (PRP )) (ADVP (ADVP (NP (DT ) (NN )) (RBR )) (, ) (ADJP (JJR ) (CC ) (JJR )))))