Noah have while they did who to are out keep the fleas .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NNP_0 Noah)) (VP_4 (VBP_0 have) (SBAR_0 (IN_2 while) (S_1 (NP_0 (PRP_1 they)) (VP_5 (VBD_1 did) (SBAR_0 (WHNP_0 (WP_0 who)) (S_2 (VP_0 (TO_0 to) (VP_1 (ATVP_1 (VBP_0 are) (RB_1 out)) (VP_1 (VB_0 keep) (NP_3 (DT_0 the) (NNS_1 fleas)))))))))))) (DOT_0 .)))