メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.340116503715 43.0567321496724, 141.33995619245 43.0573513917318, 141.33982332205 43.0578854013619, 141.338280940955 43.0576759807373, 141.338418180054 43.0571327942412, 141.338577349115 43.0565205087006, 141.339036326318 43.0565811326147, 141.340116503715 43.0567321496724)) ^^http://www.opengis.net/ont/geosparql#wktLiteral