メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.127306621705 43.6686852747569, 145.126940795554 43.6685550175962, 145.126464381523 43.6683810308927, 145.125656741907 43.6680830475272, 145.125770452214 43.6679772011135, 145.125826467624 43.6679249497798, 145.12622803766 43.6675627460134, 145.126267226551 43.6675273728087, 145.126626764792 43.6672181568751, 145.126707715285 43.6671485406575, 145.127067770439 43.6668259504782, 145.127252256114 43.6666606218601, 145.127325614456 43.666586238953, 145.128341392261 43.6670477273293, 145.12830031458 43.6671083933701, 145.127772778769 43.6679558848801, 145.127306621705 43.6686852747569)) ^^http://www.opengis.net/ont/geosparql#wktLiteral