メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.754191512909 35.4094781319478, 136.754163870239 35.4093238164897, 136.754070653407 35.4090655485012, 136.754637947286 35.4089243815653, 136.754671584269 35.409024774794, 136.755922679443 35.4087493768302, 136.755969541093 35.4090160772577, 136.756057952228 35.4090097567319, 136.756102973777 35.409240536118, 136.754191512909 35.4094781319478)) ^^http://www.opengis.net/ont/geosparql#wktLiteral