メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.053573783489 42.917343873488, 143.05427780433 42.9173974513588, 143.054080608718 42.9186572193096, 143.053383581354 42.9185981047191, 143.052697050426 42.9185512917731, 143.052596195588 42.9185443315255, 143.052733093783 42.9175464837543, 143.052768845928 42.9172858641152, 143.052863994633 42.9172957467441, 143.053573783489 42.917343873488)) ^^http://www.opengis.net/ont/geosparql#wktLiteral