メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.296313981952 43.0849576925084, 141.296283908069 43.0852818700944, 141.296153200939 43.0861488519748, 141.29614399713 43.0862782507506, 141.295832468313 43.0862637695952, 141.295369967847 43.0862268596227, 141.29463193194 43.0861811090359, 141.294171324532 43.0861521570674, 141.293886849782 43.0857925811411, 141.294009144194 43.0848577343479, 141.294072332887 43.0844841816989, 141.294112272247 43.0841124045604, 141.294893983034 43.0841616881248, 141.295329570752 43.0841881772334, 141.29563782392 43.0842090330135, 141.29641849021 43.0842638540064, 141.296313981952 43.0849576925084)) ^^http://www.opengis.net/ont/geosparql#wktLiteral