text: -- Another test for the Runner with bias and unbias choice
  
  def Block1 =
    { Match "a" }
    <|
    { Match "a" }
  
  def Block2 =
    Block3
    <|
    Match "RANDOM"
  
  -- (acd | ac) d
  def Block3 =
    {  { Match "acd"
       | Match "ac"
       }
    ; Match "d"
    }
  
  def Main =
    { Block1
    ; Block2
    ; Match "e"
    ; END
    }
    <|
    { Match "aacdde"; END }
  