メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.694769864973 35.0667300409617, 136.694767815654 35.0667056145894, 136.694730012151 35.0661624306886, 136.694674479794 35.0661690864011, 136.694630442491 35.0656937571862, 136.695205192328 35.0656591991062, 136.695285979653 35.0661903062703, 136.695300090172 35.0663036097816, 136.695217752243 35.0663109123022, 136.695234935639 35.0666751939751, 136.694769864973 35.0667300409617)) ^^http://www.opengis.net/ont/geosparql#wktLiteral