(Program
  (Module
    (Identifier))
  (Function
    (Identifier))
  (Function
  { (Identifier)
  ->(Identifier) }
    (ParameterDecl
      (PointerTy
        (Identifier))
      (Identifier)))
  (Function
  { (Identifier)
  ->(Identifier) }
    (ParameterDecl
      (Identifier)))
  (Function
  { (Identifier)
  ->(Identifier) }
    (Identifier)
    (ParameterDecl
      (Identifier))))