メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.018136571012 35.3284962030858, 136.017091969598 35.3286984816329, 136.01582724092 35.3289571235296, 136.015407584166 35.3275916603879, 136.015816924955 35.3269015845227, 136.015866864055 35.3268046732762, 136.015892470133 35.3267549492371, 136.015927043241 35.3266878298433, 136.015965627062 35.3266129629428, 136.017482553274 35.3262983715849, 136.018136571012 35.3284962030858)) ^^http://www.opengis.net/ont/geosparql#wktLiteral