メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.808500103556 35.8836634366176, 139.808081009807 35.8840030851988, 139.807842387635 35.8841927946969, 139.807602012512 35.8843872838249, 139.807354187468 35.8845659077707, 139.806975288275 35.8848521065272, 139.806899999891 35.8847690183863, 139.806813892912 35.884591572539, 139.806655143708 35.8842498058071, 139.806354211966 35.8835896365644, 139.806382309671 35.8834690224201, 139.808500103556 35.8836634366176)) ^^http://www.opengis.net/ont/geosparql#wktLiteral