メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.561496801423 42.9714344719007, 141.561526244085 42.9713622069306, 141.561997169233 42.9714696895107, 141.562010891011 42.9714414987813, 141.562115488196 42.9711867522119, 141.562657655511 42.9710544767981, 141.563071926683 42.9710718010802, 141.562773261234 42.9717169215137, 141.5625706542 42.9721468392838, 141.562338747601 42.9726532430289, 141.562209507192 42.9729318945539, 141.562061579958 42.9732673328414, 141.562014578699 42.9733939996664, 141.561807706365 42.9737974455462, 141.559324026571 42.9729361977371, 141.559414653369 42.9727671737956, 141.559712728666 42.9722769300739, 141.559827740766 42.9720425039971, 141.560076382682 42.9715185532838, 141.560175960036 42.9713323518587, 141.560532380841 42.9714100333901, 141.561153939236 42.971570893982, 141.561245119624 42.97138161629, 141.561496801423 42.9714344719007)) ^^http://www.opengis.net/ont/geosparql#wktLiteral