メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.166340489319 34.2328798585092, 135.165323338535 34.2328784593244, 135.165301392154 34.2323844226501, 135.165302593711 34.2322620165817, 135.166339818823 34.2322652395787, 135.166340489319 34.2328798585092)) ^^http://www.opengis.net/ont/geosparql#wktLiteral