メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.83964183529 35.4258548567196, 136.839646341312 35.4262612977044, 136.838261565645 35.4262718126327, 136.838261598929 35.4262582217778, 136.836654782921 35.4262817433262, 136.836638747983 35.4259110802927, 136.835771342431 35.4259104050388, 136.835760710599 35.425424477208, 136.836322807046 35.4254869246707, 136.836461243887 35.4254951529139, 136.836652817707 35.4254950762117, 136.838033491584 35.4254742519077, 136.839637367502 35.4254498589161, 136.83964183529 35.4258548567196)) ^^http://www.opengis.net/ont/geosparql#wktLiteral