メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.784876035193 35.0644434813887, 136.78193771292 35.0642750929605, 136.781839503809 35.0640821702768, 136.781176063591 35.0627634004175, 136.781423845577 35.0626164374913, 136.781540625731 35.0625898362777, 136.78165356952 35.0625962522581, 136.784221028518 35.0630176420811, 136.784165167545 35.0636836818699, 136.784939340346 35.0637504907514, 136.784876035193 35.0644434813887)) ^^http://www.opengis.net/ont/geosparql#wktLiteral