メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.789944706694 35.0673942144571, 136.785160460891 35.0670235363053, 136.785185622747 35.0668788928723, 136.785269471349 35.0660765976597, 136.785348630328 35.0654467580925, 136.784767835311 35.06542845118, 136.784782960613 35.065268071401, 136.784841445904 35.0648326093163, 136.785413000634 35.0648479289944, 136.785448019178 35.0644861967214, 136.786725702145 35.0645986604617, 136.78843953392 35.0647425429593, 136.790128763447 35.0648728739217, 136.790270260702 35.0648838771212, 136.789963374612 35.0672440560504, 136.789944706694 35.0673942144571)) ^^http://www.opengis.net/ont/geosparql#wktLiteral