メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.268918134652 35.2585978773189, 136.268772211065 35.2586872144925, 136.268456044671 35.2588786185688, 136.268175257096 35.2590517739549, 136.267992853206 35.259157528752, 136.267142059676 35.258109551334, 136.268168123503 35.2575479229291, 136.268213716275 35.2575160611039, 136.268653651032 35.2572627651533, 136.269257541643 35.2568967082882, 136.269484103991 35.2572267674701, 136.269639899874 35.257457476581, 136.2699502822 35.258001995672, 136.269756030881 35.2580801740801, 136.268918134652 35.2585978773189)) ^^http://www.opengis.net/ont/geosparql#wktLiteral