メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.698413443543 34.8310571886862, 134.696918124969 34.8311304956771, 134.69622332693 34.8311777239679, 134.694885301154 34.8312582813833, 134.694848896463 34.8309715339777, 134.694798342077 34.8305843976497, 134.696417722649 34.8302557221831, 134.696770757723 34.8301747968421, 134.698368674078 34.8298198196119, 134.698379468611 34.8306951460326, 134.698413443543 34.8310571886862)) ^^http://www.opengis.net/ont/geosparql#wktLiteral