メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.980569140597 34.6785411795091, 137.980508072587 34.6782659644899, 137.980260491127 34.6771294510067, 137.980255685527 34.677107456629, 137.981303049588 34.6769613324949, 137.981359189786 34.6769681906214, 137.981385778957 34.6769970386854, 137.98170684912 34.6774468953625, 137.981815524281 34.6776418828587, 137.981884618696 34.6776972510479, 137.981911195306 34.6777283526821, 137.981908287929 34.6777636960576, 137.981854362611 34.6778253043586, 137.981734651241 34.6779231151128, 137.981704823554 34.6779827125153, 137.981704244585 34.6780753953997, 137.981752039955 34.6781419428379, 137.981942574943 34.6782461410411, 137.980569140597 34.6785411795091)) ^^http://www.opengis.net/ont/geosparql#wktLiteral