メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.201187042578 34.6912859288333, 135.200639078613 34.6915839425336, 135.200522095952 34.691502516635, 135.200398309123 34.6914312807144, 135.20031501683 34.6913834198844, 135.200136498899 34.6912720072278, 135.199507714907 34.6908933575386, 135.200022490889 34.6901035775256, 135.200757929758 34.6907181018776, 135.201187042578 34.6912859288333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral