メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.35773601073 40.5459287151505, 141.355290639817 40.5451904498902, 141.355193989034 40.5428188795049, 141.355421482997 40.5428379728772, 141.355871448542 40.5429834417263, 141.356238178596 40.5430871077888, 141.356846527778 40.5433062239116, 141.35752992775 40.5435391404853, 141.358290013271 40.5438298877516, 141.358820656844 40.5440292962468, 141.359445597164 40.5442385108388, 141.359967194853 40.544424270619, 141.358606499993 40.5453553058159, 141.35773601073 40.5459287151505)) ^^http://www.opengis.net/ont/geosparql#wktLiteral