メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.775033116525 43.201460719335, 141.775064804331 43.2014779398555, 141.775488385425 43.201693559541, 141.774914363998 43.2023158382593, 141.77445422909 43.202078122635, 141.773995730364 43.2018528599128, 141.774025165034 43.2018195756598, 141.774229875485 43.2016032518088, 141.774595094735 43.2012233766901, 141.774609647171 43.2012311021672, 141.775033116525 43.201460719335)) ^^http://www.opengis.net/ont/geosparql#wktLiteral