メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.735522861614 35.4381138487007, 136.735434818267 35.4383193689363, 136.735353896111 35.4385527646539, 136.732379342017 35.4380817194673, 136.732395494019 35.4380463576767, 136.732500986771 35.4378614297668, 136.732619667015 35.4376563388675, 136.735522861614 35.4381138487007)) ^^http://www.opengis.net/ont/geosparql#wktLiteral