メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((128.846228307037 32.6910615232291, 128.846523714022 32.6913179810116, 128.846377449882 32.6915581866955, 128.846206593453 32.6917773031816, 128.846065062621 32.691933713267, 128.845853364331 32.6920862754866, 128.845734907058 32.6921921747365, 128.845494389143 32.6923376109164, 128.845189906615 32.6924739798886, 128.843849639582 32.6930904022249, 128.843612515579 32.6927713857664, 128.842610133508 32.6917902193964, 128.842854666323 32.6916657741354, 128.843128117883 32.6915344663267, 128.843418258824 32.6913823148602, 128.844267394339 32.6910165383748, 128.844455968915 32.6909214645132, 128.844710645286 32.6908163023775, 128.845626076801 32.6904124113374, 128.845925187237 32.6907317425263, 128.846228307037 32.6910615232291)) ^^http://www.opengis.net/ont/geosparql#wktLiteral