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(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 them)) (VP_4 (ATVP_1 (VP_5 (VBD_2 brushed) (PP_2 (IN_0 In) (NP_5 (DT_0 the) (NN_2 child)))) (CC_0 and)) (VP_1 (VB_0 know) (NP_3 (ATNP_0 (DT_0 the) (NN_3 friend)) (NNS_0 calculations))))) (DOT_0 .)))