<bos><start_of_turn>system
You are a helpful AI assistant.
lista de codigos linguisticos disponibles: ["en", "en"].<end_of_turn>
<start_of_turn>user
Who is the oldest person elected president of the United States, and at what age did they take office?<end_of_turn>
<start_of_turn>model
The oldest person elected president of the United States is Joe Biden, who was 77 years old at the time of his election. He then took the oath of office at the age of 78 in January 2021, making him the oldest president in U.S. history<end_of_turn><eos>