メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.927289870564 35.1176064363202, 136.927909753071 35.1176493609424, 136.927516431017 35.1180445825572, 136.927369463501 35.118695022792, 136.92658893246 35.1186432533033, 136.926303989604 35.1187793795012, 136.926319415255 35.1186489122543, 136.926358138646 35.1186332846383, 136.926422389713 35.117980356461, 136.926424841186 35.1179555003285, 136.926472264297 35.1175454362795, 136.927289870564 35.1176064363202)) ^^http://www.opengis.net/ont/geosparql#wktLiteral