メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.869448503567 35.3853380194123, 136.868582172556 35.3854264245003, 136.867674577699 35.3855285238368, 136.8671993904 35.3855327572498, 136.866944645503 35.3854845156355, 136.866646093021 35.3853709532742, 136.866799570282 35.3851786677499, 136.867014121143 35.3849459023995, 136.867200116282 35.3848251041394, 136.867471308005 35.384739024324, 136.867724595612 35.3846752227619, 136.868326763235 35.384543137459, 136.869299436424 35.3843252819504, 136.869448503567 35.3853380194123)) ^^http://www.opengis.net/ont/geosparql#wktLiteral