Complex sentence: Luis Favre or Luiz Favre is the nom-de-guerre of Felipe Belisario Wermus (born 1950 Buenos Aires, Argentina), he was as a young man, an Argentine union militant and member of Politica Obrera.
Split into simpler sentences: Luis Favre or Luiz Favre is the nom-de-guerre of Felipe Belisario Wermus (born 1950 Buenos Aires, Argentina). He was, as a young man, an Argentine union militant and member of Politica Obrera.