メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.930023454434 35.0937701501508, 136.929620764032 35.0936328733035, 136.929204486425 35.0934909196473, 136.929228096425 35.0934518791273, 136.929599220966 35.0927476990543, 136.929987125046 35.092869804742, 136.930410110121 35.0930328964961, 136.930023454434 35.0937701501508)) ^^http://www.opengis.net/ont/geosparql#wktLiteral