メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.319056205209 43.0615659383932, 141.31904296806 43.0616230075384, 141.318994327988 43.061831947845, 141.318986852179 43.0618640611153, 141.318926843797 43.0621403874196, 141.318844352546 43.0624572508128, 141.318204446011 43.0623592071568, 141.317368532428 43.0622456370553, 141.317411803837 43.0620804357158, 141.317534976185 43.062098248321, 141.3175756889 43.0619309159712, 141.317453349715 43.0619214092368, 141.3175200373 43.0616666585439, 141.317654964491 43.0610675006128, 141.318273879238 43.0611448408518, 141.319134683572 43.0612669752429, 141.319056205209 43.0615659383932)) ^^http://www.opengis.net/ont/geosparql#wktLiteral