メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.045273951851 42.9105166692472, 143.046047895543 42.910571084192, 143.04601140957 42.9107951375903, 143.045958272993 42.9111716428126, 143.04588030623 42.9117191573195, 143.045129536097 42.9116710514334, 143.045117194304 42.9116711369741, 143.044384247266 42.9116212849103, 143.043986522403 42.9115898566389, 143.044058173972 42.9110708025713, 143.044145047619 42.9104412154686, 143.044558597133 42.9104685250775, 143.04464305927 42.9104741293488, 143.045273951851 42.9105166692472)) ^^http://www.opengis.net/ont/geosparql#wktLiteral