メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.86691091904 35.2356549815574, 136.867908806086 35.2357109085571, 136.867915824224 35.2357571948082, 136.86788838659 35.2366062360542, 136.867859477702 35.2369929329791, 136.867851515971 35.2374317949656, 136.866779843214 35.2373787827966, 136.866756581948 35.2373787249867, 136.865753584675 35.2373303121506, 136.865177654209 35.237282887542, 136.865216300232 35.2368363568705, 136.865243619437 35.2365978990353, 136.865265625038 35.2363637930752, 136.865297592731 35.236007383002, 136.865860896705 35.2360426625312, 136.865871242052 35.2358162729044, 136.866107948814 35.2358342576709, 136.866596232244 35.2358580086694, 136.866607587869 35.2356481006609, 136.86691091904 35.2356549815574)) ^^http://www.opengis.net/ont/geosparql#wktLiteral