メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.039524871279 42.9136442453335, 143.040239959811 42.9136991739968, 143.040238590323 42.9137079743815, 143.040232933725 42.9137669527793, 143.040225293141 42.9138468324658, 143.040186245698 42.9141194273471, 143.040099962373 42.9147165782964, 143.040028922411 42.9152150890033, 143.039280437263 42.9151615844295, 143.039219668022 42.9151572194844, 143.039044668372 42.9151432315551, 143.039138557829 42.9146313422537, 143.039339735401 42.9137091697793, 143.039355382562 42.913630852805, 143.039524871279 42.9136442453335)) ^^http://www.opengis.net/ont/geosparql#wktLiteral