メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.969659453898 35.0058909425388, 136.969254004119 35.0061829694877, 136.969147742197 35.0063249855722, 136.968945021263 35.0062310561654, 136.968781914033 35.0063592457319, 136.96804752319 35.0057195506892, 136.968804123427 35.0049969547692, 136.969034267263 35.0052826307776, 136.969237821728 35.0054838907791, 136.969449185849 35.0056951648788, 136.969659453898 35.0058909425388)) ^^http://www.opengis.net/ont/geosparql#wktLiteral