メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.362398208312 43.8174412978457, 142.363335238726 43.8181295385256, 142.363191494912 43.8182425974228, 142.362939903258 43.8184281574154, 142.362610435855 43.8186673600766, 142.362042354949 43.8190845992572, 142.361851644657 43.8192153528982, 142.361415981987 43.8195424675513, 142.360627707795 43.8190862376841, 142.360335461827 43.8189156682451, 142.359913127756 43.8186742857938, 142.359208552719 43.8182637980953, 142.358771472733 43.8180116833808, 142.359227937057 43.8176724633214, 142.359762739431 43.8172842064619, 142.360032865786 43.8170998663837, 142.360351550855 43.8168449644271, 142.360419065695 43.8167959564469, 142.360959264103 43.8164115915273, 142.362398208312 43.8174412978457)) ^^http://www.opengis.net/ont/geosparql#wktLiteral