メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.005864921856 35.4482592435511, 137.002394123565 35.4495178093532, 137.001055860683 35.4499902680715, 137.000853423995 35.4498582179592, 137.00050143573 35.449687222995, 137.000211532359 35.449573006191, 136.999653826918 35.4494023143579, 136.999380159697 35.4493305139548, 136.99889889336 35.4491879930138, 136.999257494021 35.4489101543721, 136.999671083171 35.4486111244063, 136.999914884404 35.448381254373, 137.000542122011 35.4478605472474, 137.000953588964 35.4475048882681, 137.001319241584 35.4471756425486, 137.001390804612 35.4471172909334, 137.005864921856 35.4482592435511)) ^^http://www.opengis.net/ont/geosparql#wktLiteral