メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.864131898831 35.1712134943798, 136.864502547337 35.1712116717962, 136.86451967988 35.1714917839028, 136.864539258951 35.1718764071003, 136.864534915168 35.1719032274305, 136.864164538343 35.1719118113786, 136.863520088479 35.1719327374916, 136.863510573101 35.1717103204948, 136.863499554709 35.171581490593, 136.863479396788 35.1712391189186, 136.864131898831 35.1712134943798)) ^^http://www.opengis.net/ont/geosparql#wktLiteral