メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.776271604269 35.4478140766755, 136.775624897065 35.4478576590688, 136.775539954787 35.4462106322705, 136.775655214643 35.4462126238316, 136.775660951027 35.4462366209785, 136.776071131401 35.4462363242334, 136.776200631477 35.446925666828, 136.776255526968 35.4475432576631, 136.776271604269 35.4478140766755)) ^^http://www.opengis.net/ont/geosparql#wktLiteral