メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.172555937997 34.2334810580759, 135.171620561946 34.2334747564889, 135.170931289537 34.2334681440877, 135.170922882649 34.2330956262697, 135.1711301358 34.2330953315064, 135.171139738717 34.2327281468119, 135.17163956629 34.2327171426563, 135.171632090314 34.2324750763712, 135.171651449431 34.2320724575877, 135.172236243662 34.2320700518325, 135.172228295092 34.2324854254029, 135.172571435786 34.2324821086589, 135.172565043147 34.2331383817108, 135.172555937997 34.2334810580759)) ^^http://www.opengis.net/ont/geosparql#wktLiteral