メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.06929542554 43.5423316665052, 142.069173009148 43.5423116398539, 142.069078395157 43.5422643012428, 142.069018767785 43.5421916317471, 142.06854665258 43.5416357394375, 142.068392168397 43.5415919614975, 142.068372360852 43.541419530421, 142.069925318122 43.5406065737295, 142.07131224084 43.5398980475338, 142.072323246381 43.539609853131, 142.075215599744 43.5389951010362, 142.075844339943 43.5388666853503, 142.076007643827 43.5392036854561, 142.076345569989 43.5395664497172, 142.076604326531 43.5398404465462, 142.076482232594 43.5399289009878, 142.076495624809 43.540781846553, 142.076342117824 43.5407816081858, 142.075628781858 43.540746812511, 142.073328095183 43.5406344805096, 142.072571036793 43.5406550124439, 142.071434948428 43.5408560880823, 142.070607462512 43.5411083979306, 142.069978640952 43.541542140878, 142.06929542554 43.5423316665052)) ^^http://www.opengis.net/ont/geosparql#wktLiteral