メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.870939925479 43.3318583428381, 141.87084523905 43.3318630936842, 141.870775621333 43.3318222846476, 141.870618102718 43.331748623154, 141.869429679972 43.3319319717839, 141.869213278419 43.3320767626594, 141.868855110408 43.3321171376728, 141.868842841298 43.3320803851191, 141.868644362411 43.331310761748, 141.869086867325 43.3312364878503, 141.86995922048 43.3311048428531, 141.870777019799 43.3309839816999, 141.871366605939 43.3308911266532, 141.872040050246 43.3307894703426, 141.872350834622 43.3307416146954, 141.872579809916 43.3315732211801, 141.872602685857 43.3316399667427, 141.872068140208 43.3317297757269, 141.87163448828 43.3317309500668, 141.870939925479 43.3318583428381)) ^^http://www.opengis.net/ont/geosparql#wktLiteral