the little school were to shaking on when their mounds was .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_1 (DT_0 the) (JJ_1 little)) (NN_0 school)) (VP_4 (VBD_2 were) (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_0 (VBG_0 shaking) (PRT_0 (RP_0 on))) (SBAR_0 (WHADVP_0 (WRB_0 when)) (S_1 (NP_0 (PRPDOLLAR_0 their) (NNS_0 mounds)) (VP_5 (VBD_1 was))))))))) (DOT_0 .)))