メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.87249213133 35.098342213351, 136.873976965824 35.0984428171091, 136.874870237186 35.0984882910397, 136.874875246354 35.0986435028816, 136.874888878568 35.0988370430742, 136.873941084174 35.0987796791406, 136.872447421179 35.0986891204925, 136.871254921232 35.0986168133824, 136.871268429905 35.0984439740523, 136.871284001712 35.0982867020941, 136.87249213133 35.098342213351)) ^^http://www.opengis.net/ont/geosparql#wktLiteral