how sandler is losing his touch 
(ROOT (SBAR (WHADVP (WRB how)) (S (NP (NN sandler)) (VP (VBZ is) (VP (VBG losing) (NP (PRP$ his) (NN touch)))))))
(ROOT (SBAR (WHADVP (WRB )) (S (NP (NN )) (VP (VBZ ) (VP (VBG ) (NP (PRP$ ) (NN )))))))