They tried under the water something else .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (ATVP_4 (VBD_2 tried) (PP_2 (IN_0 under) (NP_3 (ATNP_0 (DT_0 the) (NN_3 water)) (NP_5 (NN_3 something))))) (ADVP_0 (RB_0 else)))) (DOT_0 .)))