メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.890886780179 43.8061083257197, 143.890788097177 43.8069080303064, 143.89076779095 43.8070741361962, 143.890677168501 43.8077500682516, 143.889866038644 43.8077020167134, 143.889188886854 43.8076603001172, 143.88923737366 43.8072323060264, 143.889284920151 43.8068125711264, 143.889334685648 43.806403000567, 143.889382220049 43.8060112874166, 143.8894364317 43.8056151714147, 143.890936471505 43.8057035367165, 143.89093345928 43.8057282272373, 143.890886780179 43.8061083257197)) ^^http://www.opengis.net/ont/geosparql#wktLiteral