I <apostrophe>m this freezing was feathers .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 I)) (VP_4 (VBP_0 <apostrophe>m) (SBAR_0 (S_1 (NP_0 (DT_1 this) (NN_2 freezing)) (VP_5 (VBD_1 was) (NP_3 (NNS_1 feathers))))))) (DOT_0 .)))