メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.167008949502 34.233781157659, 135.16696999862 34.2350213913489, 135.166387877306 34.2349656090477, 135.166353942203 34.2337823576495, 135.166608871244 34.2337804228332, 135.167008949502 34.233781157659)) ^^http://www.opengis.net/ont/geosparql#wktLiteral