メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.38691900337 43.0644087529027, 141.388067363708 43.0647632181208, 141.38777756427 43.0652790144015, 141.387546974754 43.065224177367, 141.387222778837 43.0661748411943, 141.386591354648 43.0672402145788, 141.386472332556 43.0671978919776, 141.38583504618 43.0670048785609, 141.385413534619 43.0668772114336, 141.384703955856 43.0666550933621, 141.385284664922 43.0656236684104, 141.385492442696 43.0649735632215, 141.385583195371 43.0647103044402, 141.385719120066 43.0643160059866, 141.385795610763 43.064101022464, 141.386401900356 43.0642520252711, 141.38691900337 43.0644087529027)) ^^http://www.opengis.net/ont/geosparql#wktLiteral