メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.766891944414 42.1713777085562, 142.76719640296 42.17160143225, 142.767144778413 42.1717648555895, 142.767122124133 42.1718046302127, 142.767360462225 42.1719379098915, 142.767219355859 42.1722550795021, 142.766784181927 42.1731215259483, 142.766755394714 42.1731803194235, 142.766137830484 42.1744413510284, 142.765754133668 42.1751815115509, 142.765534827184 42.1747840823163, 142.765494373514 42.1747108269965, 142.7653543949 42.1744571006046, 142.764970561865 42.1742244425226, 142.764552327696 42.1738710900126, 142.764225957889 42.173446422874, 142.765294721409 42.1726369418439, 142.765305764003 42.1726284514806, 142.765502002688 42.1724738074264, 142.765765279428 42.1722661065996, 142.76595056789 42.172119951716, 142.766207315428 42.1719176245372, 142.765705906355 42.1715912389152, 142.766179850961 42.1711670677323, 142.766344323218 42.1710198799981, 142.766891944414 42.1713777085562)) ^^http://www.opengis.net/ont/geosparql#wktLiteral