メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.004994693667 34.9990676752253, 137.004394500152 34.999071586994, 137.003516122919 34.9991836470395, 137.002122068524 34.9993534518267, 137.002015425033 34.9988040512281, 137.001961589133 34.9983045849885, 137.003317142079 34.998134658469, 137.004232241999 34.9979309531526, 137.005131915438 34.997741376507, 137.004994693667 34.9990676752253)) ^^http://www.opengis.net/ont/geosparql#wktLiteral