メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.461634235013 43.0386574463581, 144.462354589193 43.0397760557975, 144.462525099472 43.040054485571, 144.462469925063 43.040114487442, 144.462218401371 43.0401320135095, 144.462090022516 43.0401559469253, 144.461075208751 43.0403461186676, 144.460954082083 43.0400810781007, 144.460838674987 43.039772393858, 144.460760933691 43.0395726912723, 144.460687582905 43.0394151008175, 144.460515812799 43.0390639739272, 144.460030119772 43.03800727632, 144.4611160548 43.0377429492729, 144.461634235013 43.0386574463581)) ^^http://www.opengis.net/ont/geosparql#wktLiteral