メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.483338105144 40.6134173732967, 140.484171307162 40.6144459395831, 140.484206111608 40.6144911451524, 140.483420815344 40.6148452073903, 140.48322202409 40.6149110947077, 140.482959822854 40.6149587074089, 140.482257920023 40.61499520476, 140.481898159872 40.6150136727387, 140.481823533135 40.6144559193333, 140.481685013413 40.6135560276322, 140.481490855894 40.6121763281503, 140.482380495668 40.6120976991426, 140.482586631623 40.6124475167289, 140.482780975204 40.6127182149455, 140.48302266191 40.6130374632749, 140.483338105144 40.6134173732967)) ^^http://www.opengis.net/ont/geosparql#wktLiteral