メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.604646545682 42.6452399726264, 141.605899792603 42.6456696189079, 141.607069440328 42.6460548917016, 141.606774953184 42.6465576886907, 141.60650503828 42.6470606222154, 141.606208916361 42.647522472407, 141.605951990243 42.6479617530918, 141.60566433293 42.6483964998101, 141.605386710897 42.6488508542398, 141.605116463591 42.6492643153515, 141.60476612693 42.6498115251442, 141.604590833962 42.6500991961622, 141.604553167555 42.6498867087808, 141.604492397024 42.6494169413671, 141.604393042637 42.6489057382991, 141.604349677085 42.6487328887828, 141.604056192239 42.6481495496806, 141.603889567487 42.6477956608585, 141.603484696718 42.6470677825049, 141.603188738453 42.6465224092248, 141.60298577549 42.6461135911693, 141.602529328569 42.6452219563326, 141.603122280732 42.6450252756481, 141.603331904283 42.6449901671421, 141.603582584919 42.6449552912256, 141.603824463124 42.6449746642527, 141.604016755237 42.6450303316067, 141.604646545682 42.6452399726264)) ^^http://www.opengis.net/ont/geosparql#wktLiteral