メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.749374450365 35.4198949216018, 136.749835524884 35.4201170956265, 136.749606647894 35.4204355989406, 136.749284695984 35.420869342235, 136.748937467471 35.4207154434295, 136.748918049091 35.4207525589384, 136.748895288014 35.4207955787666, 136.748752000219 35.4207140323126, 136.748339467314 35.4206539192028, 136.748427411293 35.420282399517, 136.748469301513 35.4201249766248, 136.74854215055 35.4199445972735, 136.748599567781 35.419770433212, 136.748670450372 35.4195873007429, 136.749374450365 35.4198949216018)) ^^http://www.opengis.net/ont/geosparql#wktLiteral