メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.735155977212 35.4390718881633, 136.735102402378 35.4392191186556, 136.735017250325 35.4394627800199, 136.731952212199 35.4389712628683, 136.732057989082 35.4387340853479, 136.73215645062 35.4385051920029, 136.734737650029 35.4389052291841, 136.73471850598 35.4390017404431, 136.735155977212 35.4390718881633)) ^^http://www.opengis.net/ont/geosparql#wktLiteral