メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.182703179586 35.3606513073779, 137.183278030148 35.360411657248, 137.18433831526 35.3610500385792, 137.184982360721 35.3614434013572, 137.184950227847 35.3615050254614, 137.184915252632 35.3615720025586, 137.18483422678 35.3616629294615, 137.184418344784 35.3621603834301, 137.18295498406 35.3612881786738, 137.182870946096 35.3612338224572, 137.182778039457 35.3611142566213, 137.18273593008 35.3609022196749, 137.182703179586 35.3606513073779)) ^^http://www.opengis.net/ont/geosparql#wktLiteral