メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.626850159629 35.3573896205742, 136.62610816689 35.3573806693041, 136.626008744636 35.3566724082668, 136.626097584594 35.3566849891767, 136.626689443842 35.3566033396678, 136.626744909953 35.3568778127023, 136.627498708505 35.3568558267204, 136.628022156284 35.3568370342245, 136.628017762879 35.3573243380802, 136.626839875423 35.3573397854056, 136.626850159629 35.3573896205742)) ^^http://www.opengis.net/ont/geosparql#wktLiteral