メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.920365301059 35.0758167621622, 136.920744451184 35.0758671056983, 136.920764311297 35.0759153886275, 136.920730438159 35.0760873739738, 136.920833489973 35.0761025121442, 136.920952520566 35.0764591127859, 136.919573085257 35.0765531712159, 136.91959721915 35.0762284102428, 136.919650481169 35.0757217935961, 136.919998738736 35.0757680627896, 136.920365301059 35.0758167621622)) ^^http://www.opengis.net/ont/geosparql#wktLiteral