メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.89045305502 35.2387966543088, 136.890426476872 35.2400057721278, 136.89042282022 35.2401720345239, 136.890421166256 35.2402473845578, 136.890407698696 35.2407471521449, 136.888470752795 35.2407572041683, 136.88845712131 35.2402718107939, 136.888445278488 35.2392728205545, 136.888434335914 35.2383488335908, 136.890464150838 35.2383380790077, 136.890453207631 35.2387896118136, 136.89045305502 35.2387966543088)) ^^http://www.opengis.net/ont/geosparql#wktLiteral