メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.449365966778 40.5566314475989, 141.448845158703 40.5570610730767, 141.448474359147 40.5573669745619, 141.448430593927 40.5574029517977, 141.447734589038 40.5572466593791, 141.447219082765 40.5571308952973, 141.447237786606 40.556665326755, 141.447366221005 40.5565169920969, 141.447735697422 40.5561571337909, 141.448585058268 40.5552620160735, 141.448649783022 40.5553639374818, 141.448729431249 40.5554536091567, 141.4489067213 40.5555934165846, 141.448997318847 40.5556548854271, 141.449060584595 40.5561050273804, 141.449162857555 40.5561520094371, 141.449231038431 40.5566046231655, 141.449365966778 40.5566314475989)) ^^http://www.opengis.net/ont/geosparql#wktLiteral