メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.010228094799 34.9218650625395, 137.008139847737 34.9245874373969, 137.004222588454 34.9225585519613, 137.004704674556 34.9219354094464, 137.005354363876 34.9221316963222, 137.005795073071 34.9217402020768, 137.00621025106 34.9213713507356, 137.00636459825 34.9211951318739, 137.006466573776 34.92106990322, 137.006592953898 34.9208411074667, 137.006944913271 34.9203132196387, 137.007682616329 34.9196973000421, 137.008993556858 34.9208302550437, 137.009401835453 34.9211836157782, 137.009813795405 34.9215239507666, 137.010228094799 34.9218650625395)) ^^http://www.opengis.net/ont/geosparql#wktLiteral