メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.250589877707 36.154353150614, 137.250550021759 36.1548676635628, 137.250387760517 36.1566172062306, 137.250370096855 36.1566178171033, 137.248731458539 36.1566644620732, 137.248350429821 36.156675303432, 137.247681333856 36.1566875369633, 137.247676321828 36.1562836026844, 137.247674460375 36.1560784229463, 137.247641755363 36.1558957077855, 137.247611404574 36.1558122017313, 137.248223806175 36.1543185699436, 137.248690227349 36.1531808613081, 137.250698207811 36.1531965880606, 137.250589877707 36.154353150614)) ^^http://www.opengis.net/ont/geosparql#wktLiteral