Original sentence: Silesian (ISO 639-3 code: szl), used today by over 0.5 million people (2011 census) in the Polish part of Silesia and also in the Czech Republic
Edited sentence: Silesian (a dialect of Polish) (ISO 639-3 code: szl), used today by over 0.5 million people (2011 census) in the Polish part of Silesia and also in the Czech Republic