They smiled being silly to content actions .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (VBD_1 smiled) (VP_2 (ATVP_4 (VBG_0 being) (ADJP_0 (JJ_0 silly))) (PP_2 (TO_0 to) (NP_2 (JJ_1 content) (NNS_1 actions)))))) (DOT_0 .)))