メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.370836343863 43.1076215984956, 141.370165596803 43.107527560101, 141.368447757814 43.1072986722569, 141.368533924455 43.1069868783024, 141.36854395007 43.1069504572694, 141.368629069976 43.1065711427202, 141.368739747227 43.1061231763005, 141.368770055009 43.1059911974181, 141.369604354588 43.106117515095, 141.370447204607 43.1062369285728, 141.371071135759 43.1063283560974, 141.371082522695 43.1062839275234, 141.371165879793 43.1062942714283, 141.371067974988 43.1066492976604, 141.370893488037 43.1073649270033, 141.370836343863 43.1076215984956)) ^^http://www.opengis.net/ont/geosparql#wktLiteral