メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.998329200316 34.8859916362178, 136.99765591534 34.8860378100234, 136.997607657616 34.8855176213905, 136.997482081247 34.8844159998068, 136.99783772306 34.8843321943862, 136.99824633386 34.8842369822577, 136.998769403152 34.8847307889708, 136.999152737565 34.8850919218031, 136.999607765386 34.8855213993148, 136.999786987021 34.8856956794421, 136.999489517633 34.8859109219741, 136.999245395492 34.8859312187332, 136.998329200316 34.8859916362178)) ^^http://www.opengis.net/ont/geosparql#wktLiteral