メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.847097965833 36.3705027624443, 139.847417455836 36.3709377924708, 139.84772614073 36.3713796164495, 139.847927920021 36.3716262407768, 139.848052270601 36.3718211220992, 139.846721778446 36.3723972274569, 139.845530832146 36.372864903599, 139.844965041134 36.3730869589798, 139.844411280337 36.3721710041709, 139.843623052946 36.3709352583194, 139.844210551054 36.3707136296248, 139.844430461465 36.3710666503512, 139.845590377691 36.3705958540724, 139.846135507085 36.3703605264752, 139.84681330782 36.3700823010671, 139.847097965833 36.3705027624443)) ^^http://www.opengis.net/ont/geosparql#wktLiteral