メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.0023063841 35.0542557392627, 136.002217977964 35.0543173633946, 136.001951696006 35.0544862494616, 136.001505884864 35.0547558452893, 136.000986487795 35.0544409550391, 136.001009572724 35.0543903885286, 136.001054962941 35.054254955016, 136.001204382628 35.0538716864954, 136.001231136134 35.0538059769043, 136.001285020114 35.0536740655024, 136.001557634528 35.0535182813082, 136.001672615831 35.0536611805551, 136.001787577346 35.0535943455403, 136.0023063841 35.0542557392627)) ^^http://www.opengis.net/ont/geosparql#wktLiteral