a gravel friend gold <apostrophe>s the skeletal tunic .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_1 (ATNP_0 (DT_0 a) (NN_3 gravel)) (NN_0 friend)) (NN_0 gold)) (VP_4 (VBZ_0 <apostrophe>s) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 skeletal)) (NN_1 tunic)))) (DOT_0 .)))