メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.867027060228 35.4606269123309, 136.8671637809 35.4612781464975, 136.866814859684 35.4613173494434, 136.865156420089 35.4615344055884, 136.865077074748 35.4612632859105, 136.865118252433 35.4612601854541, 136.865487755035 35.4612186447903, 136.865410657713 35.4608689742966, 136.86527295334 35.4602265734638, 136.866866798166 35.4599884720333, 136.866942074524 35.4602964825708, 136.867027060228 35.4606269123309)) ^^http://www.opengis.net/ont/geosparql#wktLiteral