{

"A.1": { "caption": "A short Q+A" },
"A.2": { "caption": "A long Q+A" },

"B.1": { "caption": "A short errata." },
"B.2": { "caption": "A long errata." },

"C.1": { "caption": "A short user annotation." },
"C.2": { "caption": "A long user annotation." }

}
