メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.016805692842 43.707517976927, 142.018849820209 43.7081573172495, 142.020481573979 43.7086517020183, 142.020476011853 43.7086612898095, 142.019758010139 43.7098959921137, 142.019305430451 43.7106724959085, 142.018831915273 43.711448958341, 142.017210584806 43.7109507724954, 142.016051409388 43.7105843466008, 142.015155894826 43.710315162192, 142.014576299562 43.7101395353825, 142.012456490114 43.7094563275573, 142.012945927077 43.7086344268624, 142.013359058875 43.707935624861, 142.013827442208 43.7071364262846, 142.014119358025 43.7066838351438, 142.016805692842 43.707517976927)) ^^http://www.opengis.net/ont/geosparql#wktLiteral