メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.420508772472 34.7701784905554, 135.420412754523 34.7706840206964, 135.419986420194 34.7706290967479, 135.419429843657 34.7705475863432, 135.418916278646 34.7704983678665, 135.418259583562 34.7704353531231, 135.418298587432 34.7701624570791, 135.418333524022 34.7699177676164, 135.418802999845 34.7699568189035, 135.418992752914 34.7699725903198, 135.419537070811 34.7700177313676, 135.419629607075 34.7696366043712, 135.420628594349 34.7698023314136, 135.420508772472 34.7701784905554)) ^^http://www.opengis.net/ont/geosparql#wktLiteral