メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.074537247753 35.2203096875229, 137.074427017726 35.2206564428212, 137.07431771404 35.2209979180736, 137.072077365252 35.2205049294616, 137.071930303972 35.2204818558593, 137.071440718598 35.2203760440642, 137.071559331057 35.2200362007278, 137.071566807114 35.2200086716443, 137.071685435336 35.2196641826932, 137.073606473955 35.2201164442758, 137.073563495287 35.2202508515344, 137.07370497261 35.2202846210214, 137.073736715336 35.2202082355314, 137.073880045804 35.2202389080101, 137.073917365431 35.2201762590468, 137.074537247753 35.2203096875229)) ^^http://www.opengis.net/ont/geosparql#wktLiteral