メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.45771840272 43.4971040642675, 144.459733356529 43.4979211897041, 144.45799743657 43.5001282336682, 144.45708133735 43.5013436244831, 144.457191740431 43.5016211360058, 144.456952708089 43.5018375345693, 144.456832489737 43.5018947092831, 144.456484686207 43.5024291753375, 144.453633118131 43.5011750979807, 144.454003164429 43.5007361688472, 144.454475419339 43.5000005035906, 144.454510072589 43.4999175901003, 144.454795368178 43.4987704778661, 144.454882422169 43.4982010009144, 144.454897336605 43.4979052112531, 144.454902841681 43.4975950459674, 144.454944246183 43.4971460356252, 144.454889465173 43.4967084808121, 144.454850397734 43.4964369045467, 144.454614009621 43.4958189222251, 144.455730282911 43.4962797642183, 144.456721234735 43.4966942817291, 144.45771840272 43.4971040642675)) ^^http://www.opengis.net/ont/geosparql#wktLiteral