How to "include" one answer in another answer

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I'm looking for a solution that allows me to create multiple answers, all of which have a common "core" but which then have a part that is variable. The variable part will be a whole paragraph of formatted text and a link.

Has anybody found a way to "include" the body of an answer in another answer, so that when that "core" answer is updated, it gets updated across all of the answers it is included in?