メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.378119867089 40.6976811777288, 141.377914746218 40.6999098752357, 141.375055536976 40.7001300001989, 141.369823492288 40.7004706739228, 141.369678256115 40.6993827449106, 141.36702105569 40.6996028482268, 141.366879296938 40.6982032059374, 141.369334863477 40.6980111316506, 141.369077075703 40.6958373707925, 141.369044505821 40.6956661965699, 141.370069632503 40.6957117365011, 141.370699689829 40.6956053023525, 141.371382843528 40.6954975614732, 141.371425607423 40.6956590492081, 141.371860241677 40.6955820845728, 141.372129267499 40.6956883373259, 141.37340572555 40.6961904277581, 141.373993827303 40.696423303543, 141.374143668151 40.6964795220692, 141.374802786115 40.696759835576, 141.374858211253 40.6969091600121, 141.375182865476 40.6969030585344, 141.374350450237 40.6974538766423, 141.375641789243 40.6978981776686, 141.378119867089 40.6976811777288)) ^^http://www.opengis.net/ont/geosparql#wktLiteral