メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.361078337159 43.12022819029, 141.361015998372 43.1202168746071, 141.360948756527 43.1205449956589, 141.360229092236 43.120464008109, 141.359586514076 43.1203970479211, 141.35965754595 43.120066285902, 141.359736534289 43.1196897305112, 141.361157395388 43.119846290433, 141.361078337159 43.12022819029)) ^^http://www.opengis.net/ont/geosparql#wktLiteral