Here are some possible scenarios and their English translations:
1. "Paris, a brother, and a sister"
This would be the most literal interpretation, assuming the speaker is listing three separate things.
2. "Paris, a brother and sister"
This would mean that the speaker is referring to a brother and sister who live in Paris.
3. "Paris, a brother, a sister"
This is less likely, but could refer to a brother and a sister who are both named Paris.
4. "Paris, a brother or a sister"
This would mean that the speaker is unsure if the person they are talking about is a brother or a sister.
5. "Paris, a brother and a sister?"
This would be a question, asking if the speaker is referring to a brother and a sister.
Could you provide more context? What was the situation where you heard this phrase? Knowing more about the context could help determine the intended meaning.