メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.007016535243 43.5679667547277, 145.006514055051 43.5676453939637, 145.006147608111 43.5674141680819, 145.006283484027 43.5673061500921, 145.007177205304 43.5665891652629, 145.007358708497 43.566679820775, 145.008114859352 43.5670501460481, 145.007601219886 43.5674709227679, 145.007142218783 43.5678685090539, 145.007016535243 43.5679667547277)) ^^http://www.opengis.net/ont/geosparql#wktLiteral