Distinguishing characteristic of expression, according to RDA’s examples:

Mark K. Ehlert                 Alma: NA02
Cataloging and Metadata        Primo: MT NA01
O'Shaughnessy-Frey Library
University of St. Thomas

  "Experience is by industry achieved // And perfected by
the swift course of time"--Shakespeare, "Two Gentlemen of
Verona," Act I, Scene iii

From: Program for Cooperative Cataloging <[log in to unmask]> On Behalf Of Yang Wang
Sent: Friday, July 5, 2019 3:03 PM

…. By the way, in the example of

100 1_ ǂa Langland, William, ǂd 1330?-1400? ǂt Piers Plowman ǂs (A-text). ǂl English ǂs (Covella)

is “ǂs (A-text)” merely a “distinguishing characteristic of expression” or is it a “content type”?