メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.622584703948 35.3463696964875, 136.620923637031 35.3465083884773, 136.620881675131 35.3465112262275, 136.620762366308 35.3456182255728, 136.620524934792 35.3439194910591, 136.620469035982 35.3434966385451, 136.620505997271 35.343495961504, 136.620950540156 35.343414244512, 136.621506861427 35.3432929620417, 136.621936434992 35.3432258925575, 136.622196898153 35.3431800260829, 136.622247115401 35.3436312318225, 136.6222823691 35.3439171606891, 136.622584703948 35.3463696964875)) ^^http://www.opengis.net/ont/geosparql#wktLiteral