メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.330323572721 37.3621960807479, 140.330168254476 37.3627801990496, 140.330115211946 37.3628886946904, 140.330025238321 37.3629404632171, 140.329861882566 37.3629584640798, 140.329552300296 37.3629698959798, 140.327230869722 37.3628268114955, 140.326581139149 37.3627814998685, 140.326653186501 37.361873473689, 140.326877194362 37.3618859186974, 140.32731749064 37.3619232298139, 140.328572431129 37.3620389463937, 140.329453069508 37.3621138353269, 140.330323572721 37.3621960807479)) ^^http://www.opengis.net/ont/geosparql#wktLiteral