0
  "Γ" := rules • "chars" [0-0]
  "chars" := rules • [0-0]
  "chars" := rules • "chars" "char" [0-0]
  "Γ" := rules "chars" • [0-0]
  "chars" := rules "chars" • "char" [0-0]
  "char" := lexemes • "CHAR" [0-0]