メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.72968685865 35.436675292843, 136.729419954696 35.4367464011217, 136.728914965251 35.4368341456256, 136.728494663079 35.4368861758501, 136.728305988485 35.4362635498215, 136.728282579983 35.43587541866, 136.728927890374 35.4358608578058, 136.72969239937 35.4358402465704, 136.72968685865 35.436675292843)) ^^http://www.opengis.net/ont/geosparql#wktLiteral