+set:
+SOPEN set_label set_map_data element_list vdat SCLOSE {insert_set(); insert_set_vdatid();};
+| SOPEN set_label set_map_data element_list set_vlink SCLOSE {insert_set();};
+| SOPEN set_label set_map_data element_list set_svlink SCLOSE {insert_set_svlink($5); insert_set(); };
+| SOPEN set_label element_list vdat SCLOSE {insert_set(); insert_set_vdatid();};
+| SOPEN set_label element_list set_vlink SCLOSE {insert_set(); }
+| SOPEN set_label element_list set_svlink SCLOSE {insert_set_svlink($4); insert_set();};
+| SOPEN olink SCLOSE {insert_set_olink($2);};