the gravel yawn of the navy was attention .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NP_6 (ATNP_1 (DT_0 the) (NN_3 gravel)) (NN_1 yawn)) (PP_0 (IN_1 of) (NP_5 (DT_0 the) (NN_2 navy)))) (VP_4 (VBD_1 was) (NP_2 (NN_3 attention)))) (DOT_0 .)))