メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.838534574913 43.0837522211394, 142.837368874953 43.0834780987517, 142.837816157725 43.0823901114805, 142.839061856059 43.0826635355075, 142.83921175675 43.0826964503598, 142.839173550051 43.0827944767432, 142.839054199792 43.0830310495528, 142.838725214456 43.083514859047, 142.83872213815 43.0835193760337, 142.838534574913 43.0837522211394)) ^^http://www.opengis.net/ont/geosparql#wktLiteral