メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.382042646538 37.3570964362017, 140.381409893989 37.3571770997834, 140.381284148822 37.3568935505691, 140.380978892701 37.3566646224392, 140.380983760637 37.3563024640453, 140.381594889809 37.3563356688831, 140.381821875288 37.3566248006254, 140.381961853322 37.3568035268517, 140.382042646538 37.3570964362017)) ^^http://www.opengis.net/ont/geosparql#wktLiteral