but the eggs of the black idiom was first boulders .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (CC_0 but) (NP_1 (NP_6 (DT_0 the) (NNS_1 eggs)) (PP_0 (IN_1 of) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 black)) (NN_1 idiom))))) (VP_3 (VBD_1 was) (NP_2 (JJ_1 first) (NNS_1 boulders)))) (DOT_0 .)))