メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.051790586338 34.6687357111639, 135.051854787871 34.6688454669974, 135.052085284123 34.6695940398294, 135.051923288952 34.6699455959145, 135.051805415927 34.6700653505191, 135.051594567522 34.6699623984253, 135.051760623727 34.6697578777112, 135.051782592769 34.66969139433, 135.051802981829 34.6696051305857, 135.051636038853 34.6690368717474, 135.051578203637 34.6689278114859, 135.051514892796 34.6688084254412, 135.051790586338 34.6687357111639)) ^^http://www.opengis.net/ont/geosparql#wktLiteral