メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.148005878646 35.078870964253, 137.148100985476 35.0803387443595, 137.147492731116 35.0804490599465, 137.147241001667 35.0804928168392, 137.146962944917 35.0805411461606, 137.146886352816 35.080550779055, 137.146846394423 35.0805511946583, 137.146174752947 35.0805007705362, 137.146138541021 35.080471325748, 137.146287614617 35.079334669406, 137.146795695452 35.079140253063, 137.147101666895 35.0790604517139, 137.148005878646 35.078870964253)) ^^http://www.opengis.net/ont/geosparql#wktLiteral