メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.80847369825 35.220964179172, 136.81024119188 35.2209919118483, 136.81025164341 35.2227028986542, 136.81015676402 35.2227428337306, 136.810155435014 35.2230456534013, 136.809016741938 35.2232366787482, 136.80844170725 35.2233386460777, 136.80839112497 35.2224510823167, 136.808414450903 35.2221581868005, 136.808119215016 35.222155553974, 136.806675805703 35.2224450877093, 136.806311428329 35.2213853904567, 136.806222034433 35.2211753317478, 136.807818102233 35.2209866090066, 136.80847369825 35.220964179172)) ^^http://www.opengis.net/ont/geosparql#wktLiteral