He moved their best fingers really .
(ROOT_0 (S_0 (ATS_3 (NP_0 (PRP_1 He)) (VP_2 (ATVP_2 (VBD_2 moved) (NP_3 (ATNP_0 (PRPDOLLAR_0 their) (JJS_0 best)) (NNS_0 fingers))) (ADVP_0 (RB_0 really)))) (DOT_0 .)))