メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.128096166244 42.9763028163975, 144.128230694785 42.9761284433521, 144.129652009948 42.9768379305347, 144.129211728099 42.9773448481156, 144.128485115215 42.9781872238788, 144.128400115893 42.9782897526778, 144.12697371578 42.9775773771396, 144.125663086384 42.976922939049, 144.126756407414 42.975653721915, 144.128096166244 42.9763028163975)) ^^http://www.opengis.net/ont/geosparql#wktLiteral