メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.75498924295 35.4150393418461, 136.753728848956 35.4150681284478, 136.753805604076 35.414725370971, 136.754037312346 35.4147485854365, 136.754051290272 35.4146895166664, 136.754356521894 35.4147170661644, 136.754374239632 35.4147682878227, 136.754795536127 35.4147322508315, 136.754801494446 35.4147022379001, 136.754938670426 35.4146904837239, 136.754938566926 35.4147108708175, 136.75498924295 35.4150393418461)) ^^http://www.opengis.net/ont/geosparql#wktLiteral