メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.880138031838 43.3326472519742, 141.879846670956 43.332696527123, 141.879677819952 43.3327250987214, 141.879653056708 43.332670093051, 141.879262538815 43.3327420442231, 141.878395737383 43.3328880557847, 141.87835045591 43.3327303741075, 141.876514179111 43.3330046722104, 141.87644194599 43.3327573747993, 141.876267488142 43.3321818047704, 141.876111310535 43.3315870244258, 141.877265349084 43.3314053906683, 141.877607098917 43.3313473535144, 141.877954634045 43.3312883492315, 141.877974491519 43.331357546259, 141.878811489869 43.331225294669, 141.87881638528 43.3311611711617, 141.879289528893 43.3310900504024, 141.879660564403 43.3310476443443, 141.879880647205 43.3318206279092, 141.880138031838 43.3326472519742)) ^^http://www.opengis.net/ont/geosparql#wktLiteral