メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.245921183411 43.055774331935, 141.245991755073 43.0557752313731, 141.247010797689 43.0557960449256, 141.247514470484 43.055803409119, 141.247344692781 43.0568461571009, 141.247246074616 43.0574124206381, 141.247179840323 43.0578276211739, 141.24677095506 43.0577997762806, 141.245568853989 43.0576987956649, 141.245260289158 43.0576711215856, 141.245017999177 43.0576492333268, 141.24517208335 43.0566303368215, 141.245199821139 43.0566056140499, 141.245379446829 43.0566236463407, 141.245423611596 43.0563036887222, 141.245458431242 43.0557513561421, 141.245921183411 43.055774331935)) ^^http://www.opengis.net/ont/geosparql#wktLiteral