メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.541379015114 36.4409929998343, 136.541216797959 36.4409179032966, 136.540549646665 36.4405943296729, 136.540493573102 36.4405671393246, 136.539667659449 36.4401893930466, 136.539791989885 36.4401312218528, 136.539977014133 36.4400566462924, 136.540027235633 36.4400363856661, 136.540428196225 36.439873032125, 136.541011212945 36.4396572635769, 136.541895332603 36.4393642467443, 136.542024033659 36.4396150799801, 136.542245541254 36.440029112599, 136.541849401046 36.440276386784, 136.541379015114 36.4409929998343)) ^^http://www.opengis.net/ont/geosparql#wktLiteral