メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.946619646728 37.8027828380139, 140.946565826338 37.8027315382575, 140.946540851934 37.8012389138304, 140.945241933324 37.8012277995148, 140.945346188308 37.7988678605623, 140.948722654198 37.798937890242, 140.948641448119 37.801124590326, 140.948618115912 37.8019623279422, 140.948607571374 37.8023408515222, 140.947919040132 37.8025990848353, 140.94748231416 37.8027123188416, 140.946848752889 37.8027857410828, 140.946619646728 37.8027828380139)) ^^http://www.opengis.net/ont/geosparql#wktLiteral