メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.356327866032 42.5580471836058, 141.35626964655 42.5581799441459, 141.355859175356 42.5587141008573, 141.355045297179 42.5588930086265, 141.354386482598 42.5590669336862, 141.354003228324 42.5591732388113, 141.3542823922 42.5597461208791, 141.353857858457 42.559884315575, 141.353330540565 42.5600574353855, 141.352651229594 42.5602860534088, 141.35230105591 42.5596097796351, 141.352038614007 42.5591195962417, 141.351714639428 42.5584815055108, 141.353037912152 42.5581182523532, 141.353565501912 42.5579651128643, 141.354642892328 42.5576820698476, 141.354886060208 42.5576172921, 141.355009026374 42.5575880085927, 141.355545043404 42.5574371772859, 141.356000394416 42.5573115965045, 141.356288616023 42.5572429479876, 141.35635553222 42.5573945501328, 141.356408083161 42.5576594197193, 141.35636915317 42.557940736927, 141.356327866032 42.5580471836058)) ^^http://www.opengis.net/ont/geosparql#wktLiteral