メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.901554983331 43.8023736347412, 143.902088603945 43.8029018754244, 143.902495926227 43.8033215224002, 143.901304442597 43.8039144318374, 143.901063667887 43.8040489544988, 143.900566396325 43.8042970769439, 143.90002522905 43.8045732384447, 143.899676367471 43.8042100669547, 143.899618391313 43.8041498493823, 143.898818816336 43.8033418904308, 143.898409576242 43.8029222590102, 143.899698686714 43.80227090419, 143.900249115899 43.8019932032495, 143.900318177485 43.8019555515093, 143.900861443258 43.8016789529365, 143.901554983331 43.8023736347412)) ^^http://www.opengis.net/ont/geosparql#wktLiteral