(Program
{+(Assignment
    (Identifier)
    (If
      (Identifier)
      (Identifier)
      (
        (Identifier))))+}
  (If
  { (Identifier)
  ->(Identifier) }
    (Call
      (Identifier)
      (Empty))
    (
    { (Identifier)
    ->(Call
        (Identifier)
        (Empty)) }))
{-(Assignment
    (Identifier)
    (If
      (Identifier)
      (Identifier)
      (
        (Identifier))))-})