メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.032322589442 42.9158378060573, 143.030965747581 42.9157454946409, 143.031144730713 42.9145491928943, 143.032532292511 42.9146514199561, 143.032322589442 42.9158378060573)) ^^http://www.opengis.net/ont/geosparql#wktLiteral