Premise: Just Before the Battle, Mother, one of the most popular songs of the Civil War, sold over a million copies in sheet music, an interesting thing to contemplate (or call for at a karaoke bar) as we await the debut of Talk magazine (as I understand it, an abbreviated form of the original title, Talk Is Cheap ) and the resumption of Tina Brown-mocking.

Hypothesis: The Mother song sold over a million copies in sheet music.
Relation: entailment