(Statements
{+(Call
  {+(Identifier)+}
  {+(Identifier)+}
  {+(Identifier)+}
  {+(Empty)+})+}
  (Call
    (Identifier)
  { (Identifier)
  ->(Identifier) }
    (Empty))
  (Context
    (Comment)
  { (Call
    {-(Identifier)-}
    {-(Identifier)-}
    {-(Identifier)-}
    {-(Empty)-})
  ->(Empty) }))