メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.935077581167 34.8905433813774, 136.934054302158 34.8905648802716, 136.933124875746 34.8905915490155, 136.932911674918 34.8898965511872, 136.933115222886 34.8898452468825, 136.933899074345 34.88966109802, 136.934540112658 34.8895026609439, 136.935070282333 34.8893457666347, 136.935267674289 34.8892937420164, 136.935271329941 34.8897297847381, 136.935256324923 34.8897314465215, 136.935251800023 34.8897604548542, 136.935239855145 34.8898369902624, 136.935114970096 34.890330611201, 136.935104278382 34.8904100365135, 136.935077581167 34.8905433813774)) ^^http://www.opengis.net/ont/geosparql#wktLiteral