メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.429010379873 43.0920348313161, 141.428810795509 43.0920625852652, 141.425676159587 43.0911299832438, 141.425403525146 43.0916537251471, 141.425769564777 43.0920944429071, 141.42672277729 43.0933182082626, 141.425574234484 43.0937094730801, 141.424383354024 43.0923202571848, 141.423888273126 43.0917712130459, 141.423579841164 43.0914293671331, 141.423324947336 43.0911383334584, 141.423146698865 43.0909350609714, 141.42301495335 43.0907846596716, 141.423073252511 43.0907807916201, 141.423185463666 43.0907781567056, 141.423424573648 43.090772429143, 141.423813441394 43.0907478107308, 141.424164595047 43.0907448604176, 141.42443317313 43.0907742274616, 141.424597094074 43.0908082535479, 141.424888313781 43.0900652207655, 141.425283949929 43.0890554784239, 141.425930030454 43.0892055033124, 141.427148663089 43.0894576832612, 141.428495251873 43.0898223109679, 141.428835946019 43.0912854896243, 141.429010379873 43.0920348313161)) ^^http://www.opengis.net/ont/geosparql#wktLiteral