> The seventh word wasn't a noun, so they still needed one. I wonder how they picked gibbon. They replaced "episode" by "epistolary", so they're not insisting

> The seventh word wasn't a noun, so they still needed one. I wonder how they picked gibbon. They replaced "episode" by "epistolary", so they're not insisting that the replacements be nouns. (They did say "[I] occasionally had to take a few licenses.")