メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.791649490044 35.3188203567434, 136.791329584333 35.3192561354062, 136.789391674489 35.318262807954, 136.78939757654 35.3182497979811, 136.789608777172 35.3177822758253, 136.790199615762 35.3180771577268, 136.790965205719 35.3184687811959, 136.791649490044 35.3188203567434)) ^^http://www.opengis.net/ont/geosparql#wktLiteral