メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.333331855591 43.1107880465873, 141.333960334486 43.1115629473273, 141.333539152533 43.1117851705562, 141.333152609751 43.1119891163297, 141.332419105221 43.1123815580515, 141.332012698887 43.1125844206723, 141.33125288153 43.1118418538754, 141.33057918417 43.1111570801249, 141.331340005754 43.1107671904414, 141.331446072808 43.1107033419852, 141.331713148448 43.1105668738086, 141.331742105031 43.1105948153158, 141.332129866227 43.1104053045756, 141.332753093727 43.1100744257858, 141.332856327458 43.1102017151606, 141.333331855591 43.1107880465873)) ^^http://www.opengis.net/ont/geosparql#wktLiteral