He thought when how they would know , you howled n<apostrophe>t make Several .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 He)) (VP_4 (VBD_0 thought) (SBAR_0 (WHADVP_0 (WRB_0 when)) (S_1 (ATS_1 (ATS_2 (SBAR_0 (WHADVP_0 (WRB_0 how)) (S_1 (NP_0 (PRP_1 they)) (VP_5 (MD_0 would) (VP_1 (VB_0 know))))) (COMMA_0 ,)) (NP_0 (PRP_1 you))) (VP_3 (ATVP_1 (VBD_0 howled) (RB_1 n<apostrophe>t)) (VP_1 (VB_0 make) (ADJP_0 (JJ_0 Several)))))))) (DOT_0 .)))