メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.205923275306 35.2247234713881, 136.203695297818 35.2256084345498, 136.203249807504 35.225832972935, 136.200559804676 35.2271883729585, 136.199543851801 35.2277193943303, 136.198364207067 35.2284134888394, 136.19728536849 35.2271211552559, 136.19465622029 35.2238197857135, 136.196685334104 35.2227189984322, 136.203083459493 35.2191976951516, 136.204196206838 35.2213481385338, 136.205116612571 35.2232018826367, 136.205330496299 35.2235649186029, 136.205852646729 35.2245563319572, 136.205923275306 35.2247234713881)) ^^http://www.opengis.net/ont/geosparql#wktLiteral