メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.092994145139 36.6960438232058, 137.093007266035 36.6966728386342, 137.093018429342 36.6973035416517, 137.093052442016 36.698037120892, 137.092092931447 36.6978172908626, 137.091082741127 36.6975814398494, 137.091106667516 36.6970840383301, 137.091104715588 36.6969376632043, 137.091049250793 36.6965591267219, 137.090902417392 36.6960878074618, 137.090978003523 36.6960729289917, 137.092967081634 36.6956811458443, 137.092994145139 36.6960438232058)) ^^http://www.opengis.net/ont/geosparql#wktLiteral