メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.881020993948 35.1181276480512, 136.879822569571 35.118111102238, 136.879814641426 35.1181715042885, 136.878709251613 35.1181630586401, 136.878709326286 35.1181599598988, 136.878732194707 35.117226178614, 136.879744497833 35.1172255221855, 136.881027815647 35.11722726677, 136.881020993948 35.1181276480512)) ^^http://www.opengis.net/ont/geosparql#wktLiteral