Only 1 or 2 pages are all that remain of the witness, which is expected to be much longer.

All of the literary content (not including dedication, etc.) is extant and legible.

Some pages containing literary content are missing from the extant witness, but the majority or a significant portion survives.

In the case of a hypothetical witness, whose existence is posited, no part of the witness survives.

Collection of quotations, which may be in a notebook, in a margin, in another text, in a treatise, or wherever.