メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.069594214713 35.2088014681391, 137.069952651418 35.2097916957005, 137.070014059236 35.209975619589, 137.069180533304 35.2101969843847, 137.068455250881 35.2103784334987, 137.067884238083 35.2105289489458, 137.067507503953 35.2106247633068, 137.066330052134 35.2095972908205, 137.065337474918 35.2087662324963, 137.067656984602 35.2082040228878, 137.069236144777 35.2078261683866, 137.069594214713 35.2088014681391)) ^^http://www.opengis.net/ont/geosparql#wktLiteral