メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.861890947043 35.1686441575761, 136.862467014548 35.1686296882513, 136.862482399594 35.1688406431367, 136.862493580273 35.168994121713, 136.862506212844 35.1691607735152, 136.862517125524 35.1693519276097, 136.862543240036 35.169705232869, 136.862551785318 35.1698408884449, 136.862563942845 35.1700609887967, 136.862576735965 35.1701674991474, 136.862578768404 35.1702787707665, 136.86260960313 35.170678705169, 136.861702248377 35.1707161445429, 136.861666006994 35.1703185912478, 136.861655132171 35.1700997617058, 136.861646333018 35.1699227688116, 136.861644846682 35.169901427047, 136.861634197953 35.1697493586405, 136.8616090338 35.1693898582082, 136.861602132753 35.1692910373212, 136.861596879641 35.1692160944161, 136.861581228373 35.1690428157881, 136.861551428683 35.1686673874216, 136.861539689965 35.1684796816295, 136.861741333094 35.1684706115157, 136.861739165794 35.1684249018816, 136.861886753681 35.1684224561247, 136.861894211491 35.1684636720044, 136.861890947043 35.1686441575761)) ^^http://www.opengis.net/ont/geosparql#wktLiteral