diff --git a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
index 20fcab27..1a0f312a 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
@@ -533,3 +533,6 @@ names the principle that settles it, and is cited as "design 47 G A-n".
 - **A-139** (§681; principle 7; code shared between modules is in mesh-sdk) The chunks of a seat verb's answer are
   received with mesh-sdk's own form (`buscalls`), the one the bus module sends with; where mesh-sdk has no receive,
   it is added there, never built in the recovery module.
+- **A-140** (§681; principles 3 and 7) After its cancel is asked at the bound, the recovery module waits one more bound
+  of `snapshot-restore-wait-minutes` for that act's snapshot-restored; none heard is "answers neither". A keeper that
+  answers `busy` ends the act failed before any aside, naming the keeper's running act.