メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.038786438543 42.9135859554264, 143.039355382562 42.913630852805, 143.039339735401 42.9137091697793, 143.039138557829 42.9146313422537, 143.039044668372 42.9151432315551, 143.038621816787 42.9151126615715, 143.038569954341 42.9151088679279, 143.037866868326 42.9150584881762, 143.03792316103 42.9145352528842, 143.037970687344 42.9140938034308, 143.038018257545 42.9136520016277, 143.038022253221 42.9136239826718, 143.038033630457 42.9135443583269, 143.038783949784 42.9135857618797, 143.038786438543 42.9135859554264)) ^^http://www.opengis.net/ont/geosparql#wktLiteral