メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.394567510631 43.7487364016965, 142.393051758121 43.7488167884702, 142.392533950981 43.7488447319589, 142.391677240958 43.7488969817112, 142.39050979389 43.7489530325747, 142.390461643049 43.7484923447855, 142.390422253472 43.7479826674009, 142.39157829975 43.7479170676703, 142.392947883882 43.7478511917262, 142.392920802354 43.7474208054286, 142.392915132679 43.7472244918828, 142.392977464628 43.7471564495956, 142.39437825106 43.7470791961325, 142.394404754752 43.7472755006278, 142.394567510631 43.7487364016965)) ^^http://www.opengis.net/ont/geosparql#wktLiteral