メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.650657524159 32.4684738989074, 131.649853586396 32.4688128325834, 131.649184516929 32.4691034410659, 131.648420559245 32.4680171786432, 131.648410834252 32.4679996853842, 131.649662605338 32.467637853083, 131.650657524159 32.4684738989074)) ^^http://www.opengis.net/ont/geosparql#wktLiteral