system
Perform all tasks and answer all questions accurately and completely.
human
Use language that is more playful and lighthearted.

Relevant data:
'She picked up her pen and began to write a letter.'
gpt
With a mischievous grin, she snatched up her trusty pen and gleefully set to scribbling down her most audacious thoughts and fanciful tales in a letter to her dearest confidant.