メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.936921094454 42.9461677353271, 142.936755110976 42.946014985679, 142.936223384438 42.9455495545711, 142.93603824904 42.9453875659005, 142.935755802346 42.9451351496128, 142.935812790655 42.9451031597863, 142.936937034111 42.9444310932849, 142.93700097977 42.9444867642285, 142.937782253726 42.9452028313903, 142.938075286808 42.9454679785198, 142.937615534777 42.9457484759952, 142.936971875699 42.9461371180837, 142.936921094454 42.9461677353271)) ^^http://www.opengis.net/ont/geosparql#wktLiteral