In my dictionary, in an example in the entry for どうやって, there is the word (?)
はは at the beginning of the sentence.

> はは どうやって お互い を 知り合った のです か
>
> How did you come to know one another (translation provided by the
> dictionary)

What does that mean?

Nb: The sentence segmentation is that of the dictionary
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2022-08-17T03:36:54.710
95854
2022-08-18T15:52:38.610
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question
words
Why is there "はは" in this sentence from a dictionary?
I guess it is a short/dry laugh "Ha, ha" or possibly an exclamation "Hmm." はは
sometimes means "Yes, Sir!", but it can't be the case.

It lookes to me like an extract from a novel.
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2022-08-18T15:52:38.610
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2022-08-18T15:52:38.610
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answer