Non-restrictive clauses are usually set off by the following punctuation:
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Commas: Non-restrictive clauses are typically enclosed in commas to indicate that they provide additional information that can be omitted without changing the main meaning of the sentence.
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Dashes: In some cases, dashes can also be used to set off non-restrictive clauses for emphasis or to create a more dramatic effect.
If you need more details about non-restrictive clauses or their punctuation, feel free to ask!