メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.31333685947 37.3961976209108, 140.313296084613 37.3962098934281, 140.312909902948 37.3963039620507, 140.312001886486 37.3961258701506, 140.311798459235 37.3959038112972, 140.311973964335 37.3957865229214, 140.312215775364 37.3959673126397, 140.312741997436 37.3955844682418, 140.312331323465 37.3952124560508, 140.312570818741 37.3950297188556, 140.312972823836 37.3953914874171, 140.313263388828 37.3951229357904, 140.313657932849 37.3956631206478, 140.313720538404 37.3960435804244, 140.313452382574 37.3961183062535, 140.31333685947 37.3961976209108)) ^^http://www.opengis.net/ont/geosparql#wktLiteral