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