derived — the class was derived from the source's own words (its category, name, tags, readme head) over the class catalogue; below the bar it is unclassed (ext positioni
own-words — the owner said the class in its own words through the door; the words are held to the sets (every class, category, venue and hop a member) and graded before the
attested — a graded case of the position stood at complete: the class is attested by a sealed record, not by words (ext positioning)