メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.892571030169 34.9077926080569, 136.892549574513 34.9077917154059, 136.891150080298 34.9078454129279, 136.891037444537 34.9078462162318, 136.890796916087 34.9073512060568, 136.890779927286 34.9072606686631, 136.89087272055 34.9071851685222, 136.891097513441 34.906978829251, 136.891313068168 34.9062127126913, 136.891398727643 34.9061738179756, 136.892158345923 34.9061239651404, 136.892313517921 34.9061334681332, 136.892381534738 34.9061558043572, 136.892571030169 34.9077926080569)) ^^http://www.opengis.net/ont/geosparql#wktLiteral