メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.77931946439 35.4426802872309, 136.778209812777 35.4427663579865, 136.778144493733 35.4420064446582, 136.778685894946 35.4420119745088, 136.779462734818 35.4420346244867, 136.779910669512 35.4420255218633, 136.78007567737 35.442015271878, 136.780075965418 35.4421079474751, 136.780077754052 35.4422917187608, 136.779975600365 35.4422942460541, 136.779892785619 35.4423012011349, 136.77983447361 35.4423399236624, 136.779612547468 35.44234932317, 136.779325728146 35.442360839398, 136.77931946439 35.4426802872309)) ^^http://www.opengis.net/ont/geosparql#wktLiteral