メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.346035832678 43.106465092213, 141.346807348803 43.1065758228368, 141.347583046727 43.1066756666053, 141.347476057163 43.107170290218, 141.34739003158 43.1075249149004, 141.346344136468 43.1073922851415, 141.345811757261 43.1073229467841, 141.34582909594 43.1072535286115, 141.344261783804 43.1070673223484, 141.344349573966 43.1066464692588, 141.344388291429 43.1064552016226, 141.344403824401 43.1063781033052, 141.344447645012 43.1061075453709, 141.346072941913 43.1062913927358, 141.346035832678 43.106465092213)) ^^http://www.opengis.net/ont/geosparql#wktLiteral