メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.359248611044 40.6824714908459, 141.358887180125 40.6826237109706, 141.358615045796 40.6827611679819, 141.358051711532 40.6820618755367, 141.357461723917 40.6813268174344, 141.358132870972 40.6810262110381, 141.35848955499 40.6808631817033, 141.359068773386 40.681065226553, 141.360022670665 40.6814180250074, 141.360418053321 40.6815667207979, 141.360871703199 40.6817384367803, 141.360796309478 40.6817704441476, 141.360522729464 40.6818865955743, 141.360152050332 40.6820603942836, 141.3599408192 40.6821545886034, 141.359621713427 40.6822994417845, 141.359248611044 40.6824714908459)) ^^http://www.opengis.net/ont/geosparql#wktLiteral