メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.768928584212 35.4089932898746, 136.768450611164 35.4089986994309, 136.768437494055 35.4089986565452, 136.767660923459 35.4089943546474, 136.767665716737 35.4088944439855, 136.767680897883 35.4088594245274, 136.767745555403 35.4087772436367, 136.767840266358 35.4086969224202, 136.767885480253 35.4086507339859, 136.767941644963 35.4085639488562, 136.7679806359 35.4084799234049, 136.7679981052 35.4084080817968, 136.768003835133 35.4083273979583, 136.767995994183 35.4079715379561, 136.76817195285 35.4079247208304, 136.768177084568 35.4078693864073, 136.768465620082 35.4077994163988, 136.76892318332 35.4076835206186, 136.768928584212 35.4089932898746)) ^^http://www.opengis.net/ont/geosparql#wktLiteral