that Frozen were back together forced trips .
(ROOT_0 (S_0 (ATS_3 (NP_1 (DT_1 that) (NN_2 Frozen)) (VP_4 (ATVP_1 (VBD_0 were) (RB_1 back)) (VP_1 (ATVP_0 (ADVP_0 (RB_0 together)) (VBD_2 forced)) (NP_3 (NNS_1 trips))))) (DOT_0 .)))