メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.833251148947 35.4069376756967, 136.832731808472 35.4068968818875, 136.832058658162 35.4068605213468, 136.830839166862 35.4068295476131, 136.830162504634 35.4068004195132, 136.829038716757 35.4069063114772, 136.829186939738 35.4057875821493, 136.829184478346 35.4054689177809, 136.830010781214 35.4053808603793, 136.830810569675 35.4052667392613, 136.830979535546 35.4052162910532, 136.831864149076 35.4051387344871, 136.832931574053 35.4050367448461, 136.833034524846 35.4057307541699, 136.833251148947 35.4069376756967)) ^^http://www.opengis.net/ont/geosparql#wktLiteral