メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.165799770401 34.2233701946217, 135.165711900145 34.2233642467539, 135.164992429853 34.2233144327141, 135.165036126769 34.2225788483063, 135.165810432863 34.222656503359, 135.165799770401 34.2233701946217)) ^^http://www.opengis.net/ont/geosparql#wktLiteral