My specific claim was that you could represent it in JSON, so you can't claim, as the post I responded to did, that JSON "cannot be used."
I'll fully grant, I don't want to write a document by hand in either of the JSON formats I suggested. Although, given the choice, I'd rather receive it in that format to be parsed than in any XML format.
or:
`{paragraphs: [{spans: [{ text: "How you represent "}, {bold: true, italic: true, text: "mixed content"},{text: " in JSON?"}]}`