メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.404245726749 43.7901944950835, 142.404835554515 43.7905495528124, 142.403645910822 43.791549402259, 142.403634548128 43.7915422794108, 142.402846265497 43.791050209754, 142.402575889693 43.7908860483072, 142.402070099706 43.7905782658677, 142.402050434992 43.7905663012221, 142.401040697456 43.789923018111, 142.40221792914 43.7889197839579, 142.402746587622 43.7892500749675, 142.403251402999 43.7895549395372, 142.403264527828 43.789563306767, 142.403782044537 43.7898933086659, 142.404127211351 43.7901126755582, 142.404245726749 43.7901944950835)) ^^http://www.opengis.net/ont/geosparql#wktLiteral