メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.998002828561 36.4977579411134, 138.997276855882 36.4975944830794, 138.997233783439 36.4975938303699, 138.997001158734 36.4975903719262, 138.996452819662 36.4976390928143, 138.996402116671 36.4976182149868, 138.996335637554 36.4976046887733, 138.996068776941 36.497622532543, 138.995778954736 36.4976671830135, 138.99577356161 36.4973330215144, 138.995681974634 36.497213425038, 138.995818818153 36.4971302477027, 138.996386430143 36.4967884138259, 138.996425575741 36.4967648559983, 138.996895753339 36.4964497610364, 138.996935439328 36.4964165239053, 138.997114646432 36.4966275935829, 138.997288600249 36.4968325376004, 138.998421388533 36.49640832315, 138.998573359279 36.4967363941988, 138.998025735122 36.4968814842774, 138.9978833628 36.4973505688039, 138.998002828561 36.4977579411134)) ^^http://www.opengis.net/ont/geosparql#wktLiteral