メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.18480534737 34.2296981508415, 135.184694742326 34.2296744529181, 135.184412473601 34.2296449629197, 135.184121789176 34.2296176700837, 135.184162091441 34.2294567845829, 135.184360658593 34.2285433053412, 135.18507109266 34.2278210170389, 135.184865493097 34.2292107220595, 135.18480534737 34.2296981508415)) ^^http://www.opengis.net/ont/geosparql#wktLiteral