メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.96539212228 43.5575065548829, 144.965092994116 43.5590730033607, 144.965062736542 43.5596430527895, 144.964075512894 43.5603883964555, 144.962675673339 43.5616830435263, 144.955339098903 43.5569789397465, 144.955334368823 43.556756776453, 144.958622623958 43.5568247045524, 144.959047492213 43.5568376947909, 144.960021471999 43.5574820184115, 144.960191477827 43.5575944673475, 144.961411432505 43.5584015315001, 144.962078244393 43.5588968461804, 144.962718655927 43.5584470049801, 144.963445849094 43.5581727226908, 144.964120928698 43.5579180271851, 144.96539212228 43.5575065548829)) ^^http://www.opengis.net/ont/geosparql#wktLiteral