メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.056964876496 42.9089144688021, 143.055876658006 42.9088129716982, 143.054917888128 42.9087256053781, 143.054727363723 42.9087084469608, 143.054897196373 42.9076287685564, 143.05490921045 42.9075522321411, 143.054914764173 42.907515830659, 143.055004821877 42.9069227834944, 143.055006936225 42.9069089136125, 143.05501703403 42.9068392830491, 143.055105581125 42.9062259202835, 143.057089340035 42.906377810124, 143.057338324047 42.9063955386759, 143.056964876496 42.9089144688021)) ^^http://www.opengis.net/ont/geosparql#wktLiteral