メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.745530019083 35.4132845067362, 136.745032637311 35.4132891108426, 136.745036112261 35.4133651071719, 136.744315512875 35.4131219641409, 136.74449931793 35.4127616286408, 136.744903074329 35.4128960274333, 136.745388790853 35.4129008900543, 136.745370821691 35.413006916197, 136.745572043205 35.4130186744961, 136.745556066337 35.4131136160426, 136.745530019083 35.4132845067362)) ^^http://www.opengis.net/ont/geosparql#wktLiteral