メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.013071082284 34.8869146699653, 137.012968433128 34.8868639749558, 137.012163274087 34.8866836542877, 137.011379499976 34.886511523607, 137.010976582971 34.8864140310297, 137.010530223791 34.886266405818, 137.010820037949 34.8850386830742, 137.011121639606 34.8850556167742, 137.011328369141 34.8851031375654, 137.01123187459 34.8855199617391, 137.013270028181 34.8860332158605, 137.013071082284 34.8869146699653)) ^^http://www.opengis.net/ont/geosparql#wktLiteral