メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.76805628435 35.0572572003706, 136.766654383378 35.0587610223972, 136.764627755923 35.060900884383, 136.764990052723 35.059064192571, 136.765381445253 35.056901737676, 136.765916890942 35.0570350641039, 136.766190658031 35.057086886504, 136.766370618515 35.0571178346344, 136.766964252983 35.0571995866532, 136.767276182255 35.0572235741131, 136.76805628435 35.0572572003706)) ^^http://www.opengis.net/ont/geosparql#wktLiteral