メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.414564812261 34.7748871957966, 135.414495976866 34.7754710729656, 135.414416695994 34.7760395496907, 135.41435734964 34.7766051726867, 135.413540751715 34.7765362287311, 135.412679241671 34.7764658462128, 135.412746660192 34.7759097304807, 135.412812506779 34.7753377126304, 135.412878369639 34.7747604823567, 135.412956439119 34.7741966662269, 135.414623272887 34.7743389053116, 135.414564812261 34.7748871957966)) ^^http://www.opengis.net/ont/geosparql#wktLiteral