メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.318011420175 43.1136801367096, 141.317164660544 43.1141208772999, 141.315912952253 43.1128788220913, 141.316287662954 43.1126740605664, 141.316646891107 43.1124772591279, 141.31751811283 43.1120110540498, 141.317770708094 43.1118759020952, 141.318063103109 43.1121730938221, 141.318357685216 43.1124654494419, 141.318660905785 43.1127707451988, 141.319022875095 43.1131521880846, 141.318990070521 43.1131695038864, 141.318450757566 43.1134548666474, 141.318011420175 43.1136801367096)) ^^http://www.opengis.net/ont/geosparql#wktLiteral