{
  "tid": "T424",
  "skill_sha256": "b4d51ded0d52cfe3dcc0859de0845c3879b0c2363273ba7e809a7e06ded40b18",
  "base_revision": "ca2c272c0ee7f6135d8850c1b61dee76a0efc9c9d5833a7e6adbc3f7b7f4a24c",
  "selection_status": "unresolved full-grid relevance; numerical entries retained",
  "complete_note": "it retains $m\\in\\{1/8,1/6,1/5,1/4,1/3,2/5,1/2,3/5,2/3,3/4,4/5,5/6,7/8\\}$ and all reduced $u=a/b$ with $0<u\\leq3$ and $b\\leq4$, together with $u=1/6,1/8$ (260 entries). This is a rational reference grid, not a selection of critical points or division points. Complementary pairs $m,1-m$ do not distinguish the independent rational choices of $u$",
  "approval": "none; human review required",
  "changes_parameters": false,
  "retains_selected_literal_keys_and_numbers": true
}