メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.561276299506 34.0714344884277, 134.560331615489 34.0714789944713, 134.560347045695 34.0709586433746, 134.561314124013 34.0709660635321, 134.561276299506 34.0714344884277)) ^^http://www.opengis.net/ont/geosparql#wktLiteral