(Program
  (Throw
    (
      (Call
        (Identifier)
      {+(TextElement)+}
      {-(TextElement)-}
        (Empty))))
  (Throw
    (
      (Call
        (Identifier)
      {+(TextElement)+}
      {-(TextElement)-}
        (Empty))
    { (Identifier)
    ->(Identifier) }))
  (Throw
    ([])))