メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.043789247397 35.0022126176858, 137.043979110772 35.002813704526, 137.04309410973 35.003475542872, 137.042444324805 35.0032111955106, 137.041858288103 35.0029732531088, 137.042529546423 35.0024186817946, 137.042725683263 35.0022297819595, 137.043584237813 35.0015159445782, 137.043614036017 35.0015651334535, 137.043789247397 35.0022126176858)) ^^http://www.opengis.net/ont/geosparql#wktLiteral