メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.870077719939 43.007079866157, 142.869796598218 43.0073601721739, 142.869635376714 43.0075090165083, 142.869395006599 43.0073632558368, 142.86883863224 43.0070258656262, 142.868611951563 43.0068878370496, 142.868686036201 43.0068267429841, 142.868963239951 43.0065949888103, 142.869232839013 43.0065504209367, 142.869905430756 43.0069810006311, 142.869931309524 43.0069958403221, 142.870077719939 43.007079866157)) ^^http://www.opengis.net/ont/geosparql#wktLiteral