メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.603289771345 43.3317661235335, 145.602461699305 43.3321224102911, 145.600660968888 43.3329108618894, 145.599877618542 43.3325611582457, 145.600146536661 43.3322454866782, 145.601008863875 43.331223423925, 145.600983826948 43.3311326050907, 145.600818992037 43.3300702937983, 145.60216601048 43.3299651491676, 145.602311129547 43.3299485828998, 145.602855483346 43.3298771193356, 145.602959246369 43.3304037793917, 145.603057084502 43.3309277313429, 145.603382492275 43.3313020424794, 145.603633237356 43.3316009853758, 145.603289771345 43.3317661235335)) ^^http://www.opengis.net/ont/geosparql#wktLiteral