メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.79034104121 34.7670527162866, 135.79018053951 34.7670213107049, 135.79009504184 34.7670046824359, 135.78928466292 34.7670075136579, 135.788337477981 34.7668734670541, 135.788330889816 34.7666949847079, 135.787746927837 34.7667105935672, 135.787738059772 34.7658349870789, 135.79024837255 34.7657462127019, 135.790287746294 34.7664395981702, 135.79034104121 34.7670527162866)) ^^http://www.opengis.net/ont/geosparql#wktLiteral