メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.657100591877 34.8086523382976, 134.656836009215 34.8085679650819, 134.656051804143 34.8082970680139, 134.655453997044 34.80810737046, 134.655210830811 34.8075195063605, 134.655819301744 34.8073312524222, 134.657413073506 34.8068321673006, 134.65812621339 34.8082929419384, 134.657100591877 34.8086523382976)) ^^http://www.opengis.net/ont/geosparql#wktLiteral