メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.04391105948 37.9186302582711, 139.043806533538 37.9184746127234, 139.043784421728 37.9184520492111, 139.043679097094 37.918344838674, 139.043645273897 37.918355131818, 139.04355898081 37.9182682446185, 139.043273982693 37.9180202365947, 139.043890484488 37.9177843834501, 139.044273471752 37.9180965563851, 139.044495125501 37.9184176414979, 139.04391105948 37.9186302582711)) ^^http://www.opengis.net/ont/geosparql#wktLiteral