her <apostrophe>s his giggles happened quite crazy .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 her)) (VP_4 (VBZ_0 <apostrophe>s) (S_1 (NP_0 (PRPDOLLAR_0 his) (NNS_0 giggles)) (VP_5 (ATVP_1 (VBD_0 happened) (RB_1 quite)) (ADJP_0 (JJ_0 crazy)))))) (DOT_0 .)))