メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.239837260945 36.1586187376952, 136.239851239622 36.1586185331914, 136.240497531168 36.1585836564107, 136.240523295121 36.1594839399913, 136.240442950164 36.1594889584575, 136.240270400502 36.1594759946785, 136.240163479351 36.1594429218231, 136.239875902976 36.1594301869454, 136.239563691103 36.1594175004118, 136.239469065885 36.1594171263175, 136.238446353751 36.1594130658928, 136.238486743813 36.1591800233442, 136.238532405953 36.1586574340861, 136.238536795601 36.1586373573587, 136.239837260945 36.1586187376952)) ^^http://www.opengis.net/ont/geosparql#wktLiteral