Deutsche Gebärdensprache
Polish Sign Language ("Polski Język Migowy", PJM) is the language of the Deaf community in Poland. It descends from German Sign Language. Its lexicon and grammar are distinct from the Polish language, although there is a manually coded version of Polish known as "System Językowo-Migowy" (SJM, or Signed Polish), which is often used by interpreters on television and by teachers in schools.