メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.969850058552 43.5382971029947, 144.969438203718 43.5380376919064, 144.969270344072 43.5379247473585, 144.970206514449 43.5373643830637, 144.970280117326 43.5373159740758, 144.970715300489 43.5376040782709, 144.97075934278 43.537633336868, 144.970574881717 43.5377700339955, 144.970536668193 43.5377371208207, 144.969850058552 43.5382971029947)) ^^http://www.opengis.net/ont/geosparql#wktLiteral