メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.88185831816 35.5279505150566, 136.881757902315 35.5279731963689, 136.881533118124 35.5279693878424, 136.881404708416 35.527959257784, 136.881192546765 35.5278758686004, 136.881145727456 35.5278445970901, 136.881036408024 35.5276797347315, 136.881044904082 35.5275486353172, 136.881138444682 35.5274179156104, 136.881933148064 35.527407804079, 136.88185831816 35.5279505150566)) ^^http://www.opengis.net/ont/geosparql#wktLiteral