メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.629166667794 35.3587127641861, 136.628793510729 35.3587187787954, 136.628792733239 35.3588360998365, 136.628383179418 35.3588409658597, 136.62838352362 35.3587890652568, 136.627984599614 35.3587853859878, 136.62798303898 35.3586642524273, 136.627989465892 35.3582268876105, 136.628339248501 35.3582130236608, 136.628521948012 35.358260034764, 136.628682613044 35.3582789903199, 136.628947560781 35.3583090428747, 136.629179882216 35.3583138797499, 136.629166667794 35.3587127641861)) ^^http://www.opengis.net/ont/geosparql#wktLiteral