メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.409104266594 43.1018498047979, 141.409757028585 43.1027275826749, 141.409247981949 43.1029412174947, 141.408086854336 43.1034326192058, 141.407857415078 43.103134780763, 141.407627669482 43.102824420903, 141.407407463799 43.1025394497905, 141.407160519115 43.1022235476241, 141.406921016135 43.1019110044692, 141.406918468539 43.1019077503987, 141.406700787028 43.1016208972586, 141.406356094521 43.1011685412937, 141.408047852396 43.1004874508889, 141.408407449388 43.1009314036455, 141.409104266594 43.1018498047979)) ^^http://www.opengis.net/ont/geosparql#wktLiteral