メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.328010209778 37.4040755709278, 140.327836499273 37.4041490884037, 140.327553764889 37.4041825111908, 140.327159590239 37.4041841548846, 140.326947052435 37.4041367473473, 140.326774725055 37.4040648135772, 140.326713861806 37.403947924772, 140.326661940984 37.403815370119, 140.326535950626 37.4037043842694, 140.327026643354 37.4029147280714, 140.327324041912 37.4030120460098, 140.327919983882 37.4039357156009, 140.328010209778 37.4040755709278)) ^^http://www.opengis.net/ont/geosparql#wktLiteral