メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.958387644916 43.5442189269421, 144.957920112087 43.5439249673642, 144.957526212731 43.5436733501389, 144.957740768146 43.5435082201335, 144.957925276282 43.543630349602, 144.958479107475 43.5431883122479, 144.958561714733 43.5432412028182, 144.959156481337 43.5436218686839, 144.958387644916 43.5442189269421)) ^^http://www.opengis.net/ont/geosparql#wktLiteral