メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.838379669738 38.88079112051, 139.837085237146 38.8806827645745, 139.836596210885 38.8806390443271, 139.83588036344 38.8806155556998, 139.835177578213 38.8805722577813, 139.835059711401 38.8799801514495, 139.834905578194 38.8795349654583, 139.835805659447 38.8755798325293, 139.836692171101 38.8755378417414, 139.838017529499 38.8757329508942, 139.839760483722 38.8759789560034, 139.838379669738 38.88079112051)) ^^http://www.opengis.net/ont/geosparql#wktLiteral