メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.392078842607 43.077182682398, 141.392237492572 43.0773841707307, 141.392416249279 43.0776500211937, 141.392424933552 43.0776464287503, 141.392901151402 43.0782858475101, 141.393454847876 43.078070288281, 141.394120871201 43.0789348415999, 141.392029279392 43.0796768931564, 141.391693220381 43.0792504258146, 141.391417383117 43.0788811648585, 141.39099852177 43.0783394368541, 141.390631399381 43.0778646979198, 141.391049317641 43.0776993287298, 141.391486462147 43.0775104023145, 141.391431306803 43.0774412765121, 141.391113268999 43.0770090350802, 141.39174428244 43.0767517256471, 141.392078842607 43.077182682398)) ^^http://www.opengis.net/ont/geosparql#wktLiteral