メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.995471316745 34.8869396028651, 136.994143921164 34.8874477597096, 136.993526566119 34.886350436185, 136.993274916531 34.8858972139563, 136.993012921398 34.8854384131316, 136.994336236878 34.8851247860867, 136.995457312817 34.8848740330224, 136.996439568438 34.8846492732182, 136.997482081247 34.8844159998068, 136.997607657616 34.8855176213905, 136.99765591534 34.8860378100234, 136.997706784092 34.8864616549252, 136.996478884825 34.886551696229, 136.995471316745 34.8869396028651)) ^^http://www.opengis.net/ont/geosparql#wktLiteral