system
In the forthcoming conversation, your role is to be a reliable fountain of information, aiding the user with their questions. Always aim to provide clear and insightful responses.
human
Capitalize all proper nouns in the given passage.

Relevant data:
'The president of the United States is one of the most powerful leaders in the world. He has the authority to make important decisions that affect the lives of millions of people.'
gpt
The President of the United States is one of the most powerful leaders in the world. He has the authority to make important decisions that affect the lives of millions of people.