the snow <apostrophe>s and parents stifled n<apostrophe>t mutter .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_0 (NP_4 (ATNP_0 (DT_0 the) (NN_3 snow)) (POS_0 <apostrophe>s)) (CC_0 and)) (NNS_0 parents)) (VP_4 (ATVP_1 (VBD_0 stifled) (RB_1 n<apostrophe>t)) (VP_5 (VBP_0 mutter)))) (DOT_0 .)))