メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.303664870081 43.0611079376333, 141.303305087934 43.0613639837494, 141.302749489595 43.0617604007952, 141.302617201323 43.0618551645351, 141.302527168969 43.0619215828986, 141.302487411839 43.0619558559863, 141.302355820573 43.0621734885372, 141.302195267658 43.062396930461, 141.301645532287 43.0618270720216, 141.30147237891 43.0616545970252, 141.301539265976 43.0615901679685, 141.301544750258 43.0614895024363, 141.301560130273 43.0613380003424, 141.302304505865 43.0608347753884, 141.302653599395 43.0605939762601, 141.303158862274 43.0602394097157, 141.303836981159 43.0597831682428, 141.304104697878 43.0600247816087, 141.304152940272 43.0600685732025, 141.304398981164 43.0602728721287, 141.304590550196 43.0604518242926, 141.303664870081 43.0611079376333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral