but overall the halloween series has lost its edge 
(ROOT (S (CC but) (ADVP (RB overall)) (NP (DT the) (NN halloween) (NN series)) (VP (VBZ has) (VP (VBN lost) (NP (PRP$ its) (NN edge))))))
(ROOT (S (CC ) (ADVP (RB )) (NP (DT ) (NN ) (NN )) (VP (VBZ ) (VP (VBN ) (NP (PRP$ ) (NN ))))))