Complex sentence: The group has made many transitions down over years, the most notable being the schism between Figarelli and Botello during the fall of 1998 in which Botello and half of the group formed Mariachi Fuego.
Split into simpler sentences: The group has made many transitions down over years. The most notable being the schism between Figarelli and Botello during the fall of 1998 in which Botello and half of the group formed Mariachi Fuego.