The first line said, “Dear _,” Someone instinctively said, “Dear John!” The presenter filled in the word “John.” It went on: “I’m _ to say that…” We figured the missing word should be “sorry.” We continued through the whole letter filling in missing words with relative ease based completely on what we already knew about break up letters and what made sense in the context of each sentence.
A quick glance at the format told us that it was a letter. I remember a professional development session where the presenter projected a piece of text with lots of blanks where words should have been.