parents were a warm tunic of boy then was back moved to .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NNS_0 parents)) (VP_4 (VBD_2 were) (S_2 (ATS_1 (NP_1 (NP_6 (ATNP_1 (DT_0 a) (JJ_1 warm)) (NN_1 tunic)) (PP_0 (IN_1 of) (NP_2 (NN_3 boy)))) (ADVP_0 (RB_0 then))) (VP_3 (ATVP_1 (VBD_1 was) (RB_1 back)) (VP_5 (VBD_2 moved) (S_2 (VP_0 (TO_0 to)))))))) (DOT_0 .)))