Replace a firm's narrative activities (operators only)

The firm's narrative activities, by rank: the rank is the precedence, the first row whose when the evidence meets opens the line. Each row has a key, when it applies (English, stated by instrument) and a pattern per language. language is the firm's default narrative language. The body is the whole table in rank order, and it replaces the firm's rows in one transaction: adding, removing, renaming and re-ranking are all this one write. Refused with 400, the rows left as they were, for an empty table, a repeated key, a size past its bound, or a table where no row has a pattern in the firm's default language.