メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.089008908204 39.7741449472607, 140.088421341473 39.775065500096, 140.087606569355 39.7763251082603, 140.08693397104 39.7760467613711, 140.087574368688 39.7750968076227, 140.088354198695 39.7739174423436, 140.088618589732 39.7740093192678, 140.089008908204 39.7741449472607)) ^^http://www.opengis.net/ont/geosparql#wktLiteral