メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.992311832558 34.985831513001, 136.99101176345 34.9856155248129, 136.991571929024 34.9848175171731, 136.992354859487 34.9849785920864, 136.992623682289 34.9850338438768, 136.99290310905 34.9851788303581, 136.992311832558 34.985831513001)) ^^http://www.opengis.net/ont/geosparql#wktLiteral