メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.022014950942 36.7589379316798, 137.021664995017 36.7586960211914, 137.021735159291 36.7586273178804, 137.022631929081 36.7577492826432, 137.023018934735 36.7573753868591, 137.023334066916 36.7575785271215, 137.022734701731 36.7582257741166, 137.022088964237 36.7589231637555, 137.022048745358 36.7589462086336, 137.022014950942 36.7589379316798)) ^^http://www.opengis.net/ont/geosparql#wktLiteral