メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.263217061427 38.3667328691656, 140.263279862104 38.3667504884259, 140.263592264814 38.3668375899854, 140.263622727428 38.3668461837152, 140.263668968436 38.367716218922, 140.263636297288 38.3685023950332, 140.263612301086 38.3698695667002, 140.26295656092 38.3699426822506, 140.262936150714 38.3704299243717, 140.262210647171 38.3705169143426, 140.262257570398 38.3696090453514, 140.262261453718 38.3691149657335, 140.262310046423 38.3674311855948, 140.262263329209 38.3666239318065, 140.262899438141 38.3666617894292, 140.263217061427 38.3667328691656)) ^^http://www.opengis.net/ont/geosparql#wktLiteral