メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.29308031711 43.1483525333379, 141.29308895408 43.1483592166456, 141.293418674254 43.1486004566903, 141.293775168953 43.1488618222406, 141.294091286911 43.1491071662472, 141.294440281871 43.1493571445976, 141.294783133755 43.1496254268593, 141.295128063248 43.1498838791255, 141.294309682753 43.1504709731527, 141.293462322246 43.1510614045757, 141.292637211037 43.1516531401706, 141.292618384868 43.1516653604598, 141.292264382278 43.1513974707787, 141.291937726124 43.1511500636955, 141.291594563687 43.1508956958334, 141.29125162646 43.1506333117673, 141.290912245905 43.1503708864148, 141.290560072544 43.1501097590731, 141.290176762463 43.1498253722088, 141.291037333711 43.1492201664318, 141.291849585202 43.1486389532349, 141.292682842447 43.1480463756158, 141.29308031711 43.1483525333379)) ^^http://www.opengis.net/ont/geosparql#wktLiteral