メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.885118184514 43.011344048881, 142.884565153167 43.0118266870473, 142.884532515263 43.0118073860545, 142.883387282781 43.0111097903071, 142.883458348199 43.0110449765059, 142.883509902868 43.010997921882, 142.883560840132 43.0109514341796, 142.884363636116 43.0102707062794, 142.885035211161 43.0106907255219, 142.885546285264 43.0110053625404, 142.885118184514 43.011344048881)) ^^http://www.opengis.net/ont/geosparql#wktLiteral