(Statements
  (Package
    (Identifier))
  (Statements
  {+(QualifiedImport
    {+(Identifier)+})+}
  {+(Import
    {+(TextElement)+})+}
  {+(QualifiedImport
    {+(Identifier)+})+}
  {-(QualifiedImport
    {-(Identifier)-})-}
  {-(Import
    {-(TextElement)-})-}
  {-(QualifiedImport
    {-(Identifier)-})-})
  (Function
    (Identifier)
    (Statements)))