literals in intent?

In looking at a few of the discussion papers, I only found one example of a
literal in the intent:
    \int \fraction{dr}{r}
    intent="$op(divide(1,$r),$bvar)

This example comes from a time where we were trying to be content-oriented
in our approach, something we've agreed is not always good for speech/AT.
These days I don't think we would do anything special with the fraction or
the integral because it just wants to be read something like "integral of
fraction d r over r end fraction"

Does someone have a speech-oriented example of using a literal? I am trying
to architect how I will do the intent implementation in MathCAT and want to
make sure I accommodate that case.

Thanks,

   Neil