Here's what the code for those tags actually looks like:This would be the result:

You could paste my line from the Code box into your post and insert your own triggering content. If it turns out that these tags are easier to use in a text-mode editing box than in a WYSIWYG one, this is what the control for switching between editor modes looks like. You'll find it to the upper right of the box where you type your post or reply:

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