Question: The Shvetsov ASh-82 (M-82) is a Soviet 14-cylinder, two-row, air-cooled radial aircraft engine developed from the Shvetsov M-62, the M-62 was the result of development of the M-25, which was a licensed version of which American engine?
Sentence (from "Gnome-Rhône Mistral Major"): It was Gnome-Rhône's major aircraft engine prior to World War II, and matured into a highly sought-after design that would see licensed production throughout Europe and Japan.
Relevant evidence: No