メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.726358922082 35.4371654059678, 136.727125441754 35.4370547508013, 136.727197402524 35.4372316237967, 136.727378657741 35.4376505007671, 136.727533372223 35.4380216429815, 136.72646453832 35.4378612837142, 136.725381270119 35.437697869498, 136.725475560583 35.4372905222237, 136.725825952169 35.4372470508905, 136.726358922082 35.4371654059678)) ^^http://www.opengis.net/ont/geosparql#wktLiteral