メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.865140179901 35.387177894808, 136.863894898218 35.3887279611193, 136.860335955195 35.3858067811041, 136.861895895544 35.3845015877357, 136.863309691285 35.3856329552017, 136.86476555735 35.3868169558094, 136.86516963904 35.3871416312198, 136.865140179901 35.387177894808)) ^^http://www.opengis.net/ont/geosparql#wktLiteral