メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.51357095174 40.4976956888383, 141.513322354875 40.4979489380765, 141.512770276139 40.4975917402984, 141.51258234235 40.4974031928492, 141.512933719344 40.4972111154456, 141.513312186092 40.4969728615547, 141.513419518422 40.4968777691372, 141.513537278781 40.4967564776779, 141.514075413198 40.4972984847476, 141.513926872006 40.4974062386524, 141.51357095174 40.4976956888383)) ^^http://www.opengis.net/ont/geosparql#wktLiteral