メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.002138993189 34.8858101272973, 137.001815945896 34.885590789201, 137.001573677474 34.8856857483015, 137.000887740378 34.8858860928797, 137.000616648132 34.885357990642, 137.001076597288 34.8846381991771, 137.001417386072 34.884553940734, 137.001855676548 34.8844565735035, 137.002370044022 34.8843424755819, 137.002701494077 34.8840888166562, 137.003052512076 34.8838144766312, 137.003218086698 34.8843533484962, 137.00329353338 34.8845988990706, 137.003202775688 34.8846543453507, 137.002138993189 34.8858101272973)) ^^http://www.opengis.net/ont/geosparql#wktLiteral