メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.81332268767 35.2996161170495, 136.813529062878 35.2997979183973, 136.813817159821 35.3000517899964, 136.814176359468 35.3003603056117, 136.813512646041 35.3004770317931, 136.812338609938 35.3006465556315, 136.811498779697 35.3007726133983, 136.811402455732 35.3004649327148, 136.811228560388 35.2999720926916, 136.811226232862 35.2999642687571, 136.811121048552 35.2996108580238, 136.811960956531 35.2992631107546, 136.812574907094 35.2989933591272, 136.812602852888 35.2989817505224, 136.81332268767 35.2996161170495)) ^^http://www.opengis.net/ont/geosparql#wktLiteral