メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.049039214463 42.9022807047327, 143.049433327582 42.9027586135075, 143.049835323425 42.903253978841, 143.049628904825 42.9033231497195, 143.049384668419 42.9033015736267, 143.049341288679 42.9032982886441, 143.048721474033 42.9032520403546, 143.047862545453 42.9031879718674, 143.047814711679 42.9031843662071, 143.047824317156 42.9031096052816, 143.047865312164 42.9027649686542, 143.047914629183 42.9024017760554, 143.047955224858 42.9021042649428, 143.048641848658 42.9017985258931, 143.048795169997 42.9019848254267, 143.049039214463 42.9022807047327)) ^^http://www.opengis.net/ont/geosparql#wktLiteral