メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.269917072549 38.4491300913581, 141.270474212854 38.4501552288442, 141.269080323874 38.4506152603461, 141.267907125696 38.4510205401133, 141.267608298623 38.4511237085041, 141.267356045088 38.451083115723, 141.26713806014 38.4510177609679, 141.266968950809 38.4509080218576, 141.266782097377 38.4507052979126, 141.267987641143 38.449702048843, 141.269182222403 38.4486896775905, 141.269516490584 38.4484244841863, 141.269917072549 38.4491300913581)) ^^http://www.opengis.net/ont/geosparql#wktLiteral