Complex sentence: The main refreshing drink is the local beer known as Makangala, also Gongo or locally brewed alcohol is taken secretly due to the fact that, making, supply and consuming of the stuff is illegal in Tanzania.
Split into simpler sentences: The main refreshing drink is the local beer known as Makangala or Gongo, a form of locally brewed alcohol. It is consumed secretly because manufacture, supply and consuming of the stuff is illegal in Tanzania.