and the positive change in tone here seems to have recharged him . 
(ROOT (S (CC and) (NP (NP (DT the) (JJ positive) (NN change)) (PP (IN in) (NP (NN tone))) (ADVP (RB here))) (VP (VBZ seems) (S (VP (TO to) (VP (VB have) (VP (VBN recharged) (NP (PRP him))))))) (. .)))
(ROOT (S (CC ) (NP (NP (DT ) (JJ ) (NN )) (PP (IN ) (NP (NN ))) (ADVP (RB ))) (VP (VBZ ) (S (VP (TO ) (VP (VB ) (VP (VBN ) (NP (PRP ))))))) (. )))