it was They his giggles were moved .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (S_1 (NP_0 (PRP_1 it)) (VP_5 (VBD_1 was) (NP_1 (PRP_0 They)))) (NP_0 (PRPDOLLAR_0 his) (NNS_0 giggles))) (VP_3 (VBD_1 were) (VP_2 (VBN_0 moved)))) (DOT_0 .)))