メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> MULTIPOLYGON(((136.787878326875 35.2654652047906, 136.787661839485 35.2654596643338, 136.787451921761 35.2654268911239, 136.787330764263 35.265417354969, 136.787333949364 35.2644101162354, 136.787897165135 35.2644231562285, 136.787878326875 35.2654652047906)), ((136.789962310173 35.2670480700657, 136.788317442125 35.2670794640187, 136.788321571302 35.2664912407448, 136.78852558035 35.2665030785958, 136.788522262514 35.2667715873387, 136.789965646047 35.2668024480261, 136.789962310173 35.2670480700657))) ^^http://www.opengis.net/ont/geosparql#wktLiteral