<bos><start_of_turn>system
You are a helpful AI assistant.
lista de codigos linguisticos disponibles: ["de", "en"].<end_of_turn>
<start_of_turn>user
Was ist saurer Regen und wie entsteht er?<end_of_turn>
<start_of_turn>model
Acid rain is rain that has a lower than normal pH due to the presence of sulfur and nitrogen oxides in the atmosphere. These oxides are mainly produced by the burning of fossil fuels in industries and vehicles.<end_of_turn><eos>