メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.698781633071 35.4274994341242, 136.698772411042 35.4280007192166, 136.698753815622 35.4288059726628, 136.698750377541 35.4289542979749, 136.698750323187 35.4289562699762, 136.696196154361 35.4289347198621, 136.69621650454 35.4287714246707, 136.696239052026 35.428637044201, 136.696263910631 35.4284826396284, 136.696269235724 35.4282769998209, 136.69629033978 35.4274807349949, 136.696290229003 35.4274628485351, 136.69876619064 35.4274992329482, 136.698781633071 35.4274994341242)) ^^http://www.opengis.net/ont/geosparql#wktLiteral