メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.872460394343 35.1767537260647, 136.872464227015 35.1767494393124, 136.872459074349 35.1770090021433, 136.872457218742 35.1771020951584, 136.872447351202 35.1771453104268, 136.872049044365 35.1771572984456, 136.871881295848 35.1771623842455, 136.871878143809 35.1771623765896, 136.870975239833 35.177165461464, 136.870953368287 35.1771655487936, 136.869618412145 35.1771836970331, 136.869593472075 35.1771840587453, 136.868478939138 35.177188649392, 136.867863570001 35.1771911498307, 136.867859976301 35.1767933977625, 136.867845846478 35.17610808717, 136.868844698282 35.1760982890516, 136.868846737233 35.1764534325036, 136.869027399392 35.1764524668454, 136.869604798903 35.1764463468054, 136.870951099775 35.1764305504297, 136.87187876452 35.176420553729, 136.872455928104 35.1764076621745, 136.872460394343 35.1767537260647)) ^^http://www.opengis.net/ont/geosparql#wktLiteral