メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.367815243782 43.1099317143038, 141.367776543875 43.1100662297871, 141.36768517825 43.110451894819, 141.36729830909 43.1104003918794, 141.366960382122 43.1103564372011, 141.36629696168 43.1102651055391, 141.366338323917 43.1101126068154, 141.366354140281 43.1100408567815, 141.366500343718 43.109427338632, 141.367891916447 43.1096130965607, 141.367815243782 43.1099317143038)) ^^http://www.opengis.net/ont/geosparql#wktLiteral