been worth cheering as a breakthrough 
(ROOT (VP (VBN been) (ADJP (JJ worth) (S (VP (VBG cheering) (PP (IN as) (NP (DT a) (NN breakthrough))))))))
(ROOT (VP (VBN ) (ADJP (JJ ) (S (VP (VBG ) (PP (IN ) (NP (DT ) (NN ))))))))