メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.833494020616 34.6921563227002, 131.833006997388 34.6947592072584, 131.832530417733 34.6947010223487, 131.83101057649 34.6945144720416, 131.830072828664 34.6943979190794, 131.830428888503 34.6922490202654, 131.830520378909 34.6916689946718, 131.830996221124 34.6918349051924, 131.831651737782 34.6919764257001, 131.831959674313 34.6920245015724, 131.832078039366 34.6920331759516, 131.83250092423 34.6920784642486, 131.833494020616 34.6921563227002)) ^^http://www.opengis.net/ont/geosparql#wktLiteral