メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.363761430743 43.1072462855926, 141.364223513809 43.1073055555876, 141.364670432704 43.107351484915, 141.364547001428 43.1078627830776, 141.364091021954 43.107792661514, 141.364075506679 43.1077902911691, 141.363632873123 43.1077332099247, 141.363137888677 43.1076655958994, 141.363259673498 43.1071694766655, 141.36362504902 43.1072253993462, 141.363761430743 43.1072462855926)) ^^http://www.opengis.net/ont/geosparql#wktLiteral