メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.159207364402 34.6521866971822, 135.159208281573 34.6522790931132, 135.159239800514 34.6524321316371, 135.159265912473 34.6528646669749, 135.158044132752 34.652868442501, 135.158152279153 34.6524981011647, 135.158247057452 34.6521548948461, 135.159207364402 34.6521866971822)) ^^http://www.opengis.net/ont/geosparql#wktLiteral