[{"role": "user", "content": "I'm trying to learn Italian and I'm stuck on a phrase that I think means I was wrong, can you translate 'I was so certain' into Italian for me?"}, {"role": "assistant", "content": "Don't worry, it's a common phrase. The translation of 'I was so certain' in Italian is 'Ero cos\u00ec sicuro.' It's often used to express that you were confident about something, but it turned out to be incorrect."}, {"role": "user", "content": "That's really helpful, thank you! What's the difference between 'Ero cos\u00ec sicuro' and 'Ero cos\u00ec convinto'?"}, {"role": "assistant", "content": "While both phrases can be used to express certainty, 'Ero cos\u00ec sicuro' tends to focus more on the fact that you were confident about something, whereas 'Ero cos\u00ec convinto' implies that you were not only certain but also convinced or persuaded of something. However, in many cases, they can be used interchangeably."}]