メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.744477921908 43.2011288746049, 141.744922274765 43.20135897631, 141.744192393254 43.2021193105489, 141.744171765155 43.2021085296995, 141.743546888994 43.2027473743627, 141.743127511535 43.2025365063514, 141.742659851738 43.2022938458746, 141.743284189693 43.2016392506732, 141.74399329425 43.2008926854515, 141.744249801866 43.2010177348091, 141.744477921908 43.2011288746049)) ^^http://www.opengis.net/ont/geosparql#wktLiteral