メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.855088611646 35.4144602968144, 136.854858653719 35.4160746577324, 136.854763791815 35.4168508694448, 136.854688742237 35.417463158107, 136.854686698575 35.4174800186045, 136.853173618235 35.4174104316745, 136.852720758799 35.4173614398152, 136.852806651701 35.4168457953687, 136.852913672845 35.4159166974158, 136.853122518995 35.4142877054406, 136.853315552588 35.4128197955781, 136.854702919776 35.4129506438756, 136.855269954885 35.4129981654818, 136.855088611646 35.4144602968144)) ^^http://www.opengis.net/ont/geosparql#wktLiteral