メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.428068014631 43.7643076559885, 142.428112164039 43.7647279044572, 142.428159495625 43.7651785983356, 142.42820238576 43.7655868418811, 142.427249724746 43.7656490094872, 142.426198002608 43.7657176325704, 142.425410802488 43.7657690040163, 142.425319045631 43.7648442814635, 142.426062923888 43.7644909780561, 142.426217101791 43.7644177665998, 142.427362211547 43.763873884836, 142.428018360473 43.7638349026056, 142.428068014631 43.7643076559885)) ^^http://www.opengis.net/ont/geosparql#wktLiteral