メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.770206027345 35.4046530683205, 136.769971433521 35.4051800368373, 136.769870497552 35.4053911817153, 136.768553417783 35.4053429424752, 136.768565650785 35.4051377059406, 136.768594357268 35.4045725341673, 136.768735962547 35.4045748274645, 136.768753424835 35.4042853853945, 136.768868917452 35.4042894951614, 136.768867727399 35.4043040684486, 136.769172747264 35.4043164015576, 136.769174503441 35.4043004212512, 136.770337931816 35.4043616041995, 136.770206027345 35.4046530683205)) ^^http://www.opengis.net/ont/geosparql#wktLiteral