メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.740242438069 35.1644708020326, 136.741101647356 35.1645060709027, 136.741089144682 35.1648067936506, 136.741078968512 35.1654014595113, 136.740191417043 35.1653639770451, 136.739275162655 35.1653296969071, 136.739287031277 35.1652087561494, 136.739325999028 35.1644409583428, 136.740242438069 35.1644708020326)) ^^http://www.opengis.net/ont/geosparql#wktLiteral