メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.401628702666 37.4213906001188, 140.401458090795 37.4214671675671, 140.401327086538 37.4214711746642, 140.401242805012 37.4215019911744, 140.401070436372 37.421620807168, 140.400721655732 37.4218954864591, 140.400549924666 37.4220986376857, 140.400356114197 37.4221837635848, 140.400150169781 37.4223331516874, 140.400004860105 37.4224063575979, 140.399229390659 37.4226998280233, 140.399175114775 37.4213938926835, 140.400528510234 37.4212238133675, 140.401817135183 37.4210627613847, 140.401704223338 37.4213160366178, 140.401628702666 37.4213906001188)) ^^http://www.opengis.net/ont/geosparql#wktLiteral