(Program
  (Import
  {-(ScopeResolution
      (Identifier))-}
    (ScopeResolution
      (Identifier))
  {+(ScopeResolution
      (Identifier))+})
  (Import
    (ScopeResolution
      (Identifier))
    (ScopeResolution
      (Identifier))
    (ScopeResolution
      (Identifier)))
  (Import
    (ScopeResolution
    {+(Identifier)+}
    {-(Identifier)-})
    (Identifier)))