メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.929875527422 35.1397589397087, 136.929843921463 35.1401783983609, 136.929846021479 35.1401785431582, 136.929844241877 35.1402015687247, 136.928933696757 35.1401561633374, 136.928619717433 35.1401405358432, 136.928623203459 35.1401063169163, 136.928648365112 35.1396937463305, 136.928660640673 35.1395260181786, 136.929961678952 35.1391913438105, 136.929866535723 35.1392507346611, 136.929906386754 35.1393227875539, 136.929875527422 35.1397589397087)) ^^http://www.opengis.net/ont/geosparql#wktLiteral