メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.785254345059 35.4151409310521, 136.782804483221 35.4152342227794, 136.782799139152 35.4147738028498, 136.785239888207 35.414685481123, 136.785247602089 35.4149104255385, 136.785254345059 35.4151409310521)) ^^http://www.opengis.net/ont/geosparql#wktLiteral