Read the comedian's joke setup and choose the correct interpretation based on the punctuation.

"My brother, who lives in Paris, is terrified of baguettes."

Based on the commas in this sentence, what do we know about the comedian's family?

The correct answer is The comedian has exactly one brother.

The commas create a non-defining relative clause, which means "who lives in Paris" is just extra, bonus information. We only use this structure when it's already perfectly clear who we are talking about—which implies the comedian has only one brother!

If the comedian had multiple brothers, he would remove the commas ("My brother who lives in Paris...") to specify which brother he meant.