メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.689516806504 35.4234637054179, 136.689498966465 35.4253305671697, 136.688747918257 35.4252998973039, 136.688493948775 35.4252859736021, 136.688336941423 35.4252711647272, 136.688176456687 35.4252699327887, 136.688092920897 35.4252625605845, 136.688024387563 35.4252858103302, 136.688049273348 35.4249545846921, 136.688005812879 35.4234505323941, 136.688001683796 35.4228099093105, 136.689460447659 35.4227717861824, 136.689516806504 35.4234637054179)) ^^http://www.opengis.net/ont/geosparql#wktLiteral