メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.396768850986 44.171444764047, 142.395444372799 44.171236236903, 142.395700642844 44.1703587652582, 142.397038607482 44.1705712809165, 142.396768850986 44.171444764047)) ^^http://www.opengis.net/ont/geosparql#wktLiteral