メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.857002044936 35.4146330025243, 136.856812505406 35.4162600380253, 136.856719835704 35.4168559089712, 136.856607826035 35.4175816562557, 136.856305344324 35.4175637670898, 136.855137990921 35.4175120637398, 136.854958015748 35.4174924798874, 136.854686698575 35.4174800186045, 136.854688742237 35.417463158107, 136.854763791815 35.4168508694448, 136.854858653719 35.4160746577324, 136.855088611646 35.4144602968144, 136.855269954885 35.4129981654818, 136.856217208194 35.4130775438636, 136.857191543712 35.4131667723297, 136.857002044936 35.4146330025243)) ^^http://www.opengis.net/ont/geosparql#wktLiteral