メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.783139741212 35.6899651278405, 139.783878351327 35.6904280919104, 139.784303755089 35.6906937138043, 139.784439162728 35.6907859477515, 139.78469268257 35.6909553037416, 139.784850549966 35.6921198546681, 139.784863341956 35.6922035182481, 139.784893102078 35.6923895422799, 139.784916399032 35.692520037778, 139.785007693781 35.6931311015644, 139.785008604209 35.6931616636035, 139.784362898475 35.6932287603683, 139.784328699541 35.6929965743559, 139.783991598685 35.6927367296581, 139.782951618382 35.6919437975862, 139.782352326793 35.691525427868, 139.781980996548 35.6912661959415, 139.781825244942 35.6911625419016, 139.781823793562 35.6911544082362, 139.78240042354 35.6904878897676, 139.782413392871 35.6904728956456, 139.782954609197 35.6898511466975, 139.783112579126 35.6899499418879, 139.783139741212 35.6899651278405)) ^^http://www.opengis.net/ont/geosparql#wktLiteral