メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.447865608145 36.3976783156561, 136.447276443197 36.3977832223009, 136.446809157623 36.3979463163149, 136.446673080003 36.3977189350157, 136.446609731247 36.3975286745439, 136.446474979038 36.3971577161376, 136.446340816707 36.3967229420523, 136.446657244774 36.3966546410376, 136.447127745219 36.396571365565, 136.447504574975 36.3964986082592, 136.447559724568 36.3964870808866, 136.447666664838 36.3969849124017, 136.447778751631 36.3973211652812, 136.447865608145 36.3976783156561)) ^^http://www.opengis.net/ont/geosparql#wktLiteral