メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.697919680366 35.4433887165141, 136.698549870355 35.4433876331153, 136.698552623875 35.4433876437578, 136.698552313936 35.4433890505051, 136.698540824734 35.4434710454979, 136.698438465997 35.4440285855168, 136.698423650755 35.4443059475112, 136.698421241949 35.4443059381992, 136.698372585906 35.444304939759, 136.697838700216 35.44430988173, 136.696117184869 35.4442920270138, 136.696116722325 35.4438321493732, 136.696113068436 35.4433731038313, 136.697919680366 35.4433887165141)) ^^http://www.opengis.net/ont/geosparql#wktLiteral