a supremely kittenish performance that gradually accumulates more layers 
(ROOT (NP (NP (DT a) (ADJP (RB supremely) (JJ kittenish)) (NN performance)) (SBAR (WHNP (WDT that)) (S (ADVP (RB gradually)) (VP (VBZ accumulates) (NP (JJR more) (NNS layers)))))))
(ROOT (NP (NP (DT ) (ADJP (RB ) (JJ )) (NN )) (SBAR (WHNP (WDT )) (S (ADVP (RB )) (VP (VBZ ) (NP (JJR ) (NNS )))))))