メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.906271548758 43.8070180324064, 143.906866368857 43.8067160268112, 143.907716307452 43.8075768340181, 143.908179019639 43.8080585586449, 143.907578841552 43.8083638098945, 143.906724301247 43.8087970046888, 143.906290130227 43.8090171282101, 143.905658958292 43.8093398557662, 143.904977992755 43.8096881044272, 143.904527313645 43.8092338309036, 143.904525915396 43.8092323921124, 143.903665052315 43.8083549824362, 143.904365786599 43.8079843911191, 143.90469328215 43.8078183681668, 143.905406483749 43.807456730175, 143.906035411008 43.8071377105899, 143.906271548758 43.8070180324064)) ^^http://www.opengis.net/ont/geosparql#wktLiteral