メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.395347846217 37.2881664971906, 140.395925153038 37.2881685367484, 140.395933395457 37.2886739640321, 140.395868518035 37.2888008499632, 140.395860489637 37.2889300009458, 140.395811956786 37.2892409741773, 140.395770388177 37.2892793286481, 140.395342628952 37.2892813642227, 140.394560528345 37.2892887423144, 140.39455450784 37.2888800327037, 140.394554850105 37.2885215585782, 140.39454184577 37.2881810276518, 140.394542097188 37.2880126323487, 140.395277769796 37.2879899876364, 140.395346854987 37.2880327429564, 140.395347846217 37.2881664971906)) ^^http://www.opengis.net/ont/geosparql#wktLiteral