<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
I'm curious, difficult is it to learn Portuguese, for both Brazilian and European versions?<|im_end|>
<|im_start|>assistant
Both Brazilian and European Portuguese are mutually intelligible but have some key differences. For instance, Brazilian Portuguese is spoken more slowly and with open vowels while European Portuguese may sound quite rushed and mumbled to an untrained ear. Some people believe that Brazilian Portuguese is easier to master than European Portuguese for this reason.<|im_end|>