メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.004152671465 43.5710592932149, 145.002755352248 43.5701520058401, 145.003343719778 43.5696593075022, 145.004309975548 43.5688729866356, 145.005370297747 43.5695632589732, 145.005381663218 43.5695707201063, 145.005735525429 43.5698014430704, 145.005548113876 43.5699501530525, 145.004398200442 43.5708657987788, 145.004152671465 43.5710592932149)) ^^http://www.opengis.net/ont/geosparql#wktLiteral