メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.219063027795 36.6664160190786, 137.220240104904 36.6662013069931, 137.220007049286 36.6665161992031, 137.220258415703 36.6666430966533, 137.21996628614 36.6670706656789, 137.219870266219 36.6670964785076, 137.219660468464 36.6674246662358, 137.219583533483 36.6676569723907, 137.219532286584 36.6678717330961, 137.219477016265 36.6682197755146, 137.218782941867 36.6674633636412, 137.218672451908 36.6673530164287, 137.218092786734 36.6673126501354, 137.217708036288 36.6672909945609, 137.217687306505 36.6672898068749, 137.216563405701 36.6660252407668, 137.216988079322 36.6657670193924, 137.217077698726 36.6657360009123, 137.218255876413 36.6658283492508, 137.21827547205 36.6664008820125, 137.219063027795 36.6664160190786)) ^^http://www.opengis.net/ont/geosparql#wktLiteral