It should puffy keep out how there <apostrophe>s dirt .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 It)) (VP_4 (ATVP_1 (MD_0 should) (ADVP_0 (RB_0 puffy))) (VP_1 (ATVP_0 (VB_0 keep) (PRT_0 (RP_0 out))) (SBAR_0 (WHADVP_0 (WRB_0 how)) (S_1 (NP_0 (EX_0 there)) (VP_5 (VBZ_0 <apostrophe>s) (NP_2 (NN_3 dirt)))))))) (DOT_0 .)))