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How do you handle “that that”? The double “that” problem

I've encountered this sentence in a technical book:

A browsing context has a session history, which lists the Document objects that that browsing context has presented.

What is the grammaticall role of each "that" here? Can we consider using two consecutive "that" as a poor writing style from the point of user understanding?

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marked as duplicate by JSBձոգչ, KitFox, Marthaª, RegDwigнt Aug 3 '11 at 18:33

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1 Answer 1

The first "that" means the same as the word "which" in this context, and so can easily be replaced with it as such:

A browsing context has a session history, which lists the Document objects which that browsing context has presented.

The second "that" refers to the "browsing context".

I use "that" twice consecutively on occasion, but I will often try to rephrase the sentence to do away with that potentially awkward construct. For example, I can rewrite your given sentence as:

A browsing context has a session history, which lists the Document objects presented by that browsing context.

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