メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.369134161658 43.8129017129779, 142.368756204096 43.813176179543, 142.368264900755 43.8135235782176, 142.36784459105 43.8132894660997, 142.367288284746 43.8130381025453, 142.367006879066 43.812918735126, 142.367398014291 43.8123899768697, 142.367488890321 43.8122247869795, 142.367586117955 43.8120991642493, 142.367772170039 43.811896448819, 142.368176270508 43.8116164734335, 142.368619218975 43.8119297436089, 142.369566805565 43.812617273006, 142.369134161658 43.8129017129779)) ^^http://www.opengis.net/ont/geosparql#wktLiteral