メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.94058812826 35.1499286911346, 136.939620296002 35.14992757819, 136.93961017866 35.1498963614147, 136.939575999174 35.1495286804392, 136.939548486008 35.1492067255008, 136.939547052953 35.1491899543181, 136.940277413715 35.1491824535289, 136.940521065739 35.1491833414513, 136.940532556349 35.1492472295544, 136.940549935173 35.1495139602256, 136.94058812826 35.1499286911346)) ^^http://www.opengis.net/ont/geosparql#wktLiteral