メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.021207322639 43.1661349894215, 143.017988583781 43.1668061180047, 143.017495027516 43.165431274314, 143.017395633117 43.1651552686324, 143.020689785613 43.1645970193525, 143.020736097953 43.1647346212485, 143.020867252053 43.1651244115085, 143.021207322639 43.1661349894215)) ^^http://www.opengis.net/ont/geosparql#wktLiteral