メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.549446750078 34.0636771495458, 134.549034246638 34.0637037059826, 134.548967192601 34.0623496989817, 134.549383277822 34.0623259993546, 134.549446750078 34.0636771495458)) ^^http://www.opengis.net/ont/geosparql#wktLiteral