メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.684152838067 34.89310518886, 135.683736499417 34.8932517218591, 135.683348089121 34.8929365252641, 135.683064043612 34.8926889306252, 135.683436779538 34.8922550776665, 135.683468549667 34.8922729794134, 135.683649301423 34.8923640227171, 135.684432933561 34.8928784334494, 135.684152838067 34.89310518886)) ^^http://www.opengis.net/ont/geosparql#wktLiteral