They listened from the phrase best side for friend child back .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (ATVP_4 (VBN_0 listened) (PP_2 (IN_0 from) (NP_3 (NP_6 (ATNP_1 (NP_4 (DT_0 the) (NN_2 phrase)) (JJS_0 best)) (NN_1 side)) (PP_0 (IN_1 for) (NP_2 (NN_2 friend) (NN_3 child)))))) (ADVP_0 (RB_0 back)))) (DOT_0 .)))