メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.034965169196 36.9777460628389, 140.034969885532 36.9777540102128, 140.035484248262 36.9785815601056, 140.033513373062 36.9793126720526, 140.031108687211 36.9802346383553, 140.030996539791 36.980276645355, 140.030724148689 36.9796255936417, 140.030581814603 36.9793250703885, 140.030543559734 36.979235440325, 140.030307896696 36.97868288901, 140.033274451897 36.9775434302765, 140.034524651461 36.9770624257795, 140.034783519955 36.977441246003, 140.034965169196 36.9777460628389)) ^^http://www.opengis.net/ont/geosparql#wktLiteral