maybe that was because were never warm .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ADVP_0 (RB_0 maybe)) (NP_0 (DT_1 that))) (VP_3 (ATVP_1 (VBD_1 was) (ADVP_0 (IN_2 because))) (VP_5 (VBD_0 were) (ADJP_0 (RB_0 never) (JJ_0 warm))))) (DOT_0 .)))