メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.729703709331 35.4371238162556, 136.729695874546 35.437506831367, 136.727614879997 35.4371774045729, 136.727197402524 35.4372316237967, 136.727125441754 35.4370547508013, 136.728494663079 35.4368861758501, 136.728914965251 35.4368341456256, 136.729419954696 35.4367464011217, 136.72968685865 35.436675292843, 136.729703709331 35.4371238162556)) ^^http://www.opengis.net/ont/geosparql#wktLiteral