=Our first chapter
Let's say I want to \X<index> a \X<word>.
It is a very \X<important> one everyone should know about.
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==... with deeper explanations
You know, an index collects keywords of the \X<text>.
=Our second chapter
There are more \X<word>s out of course, but they are not
of interest in this \X<text>.
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=Conclusion
Importance is (con)\X<text> dependent.
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=Index
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