(Program
{-(Hash
    (KeyValue
      (Identifier)
      (Integer)))-}
  (Hash)
{+(Hash
    (KeyValue
      (Identifier)
      (Integer)))+}
{+(Hash
    (KeyValue
      (Identifier)
      (Identifier))
    (KeyValue
      (Identifier)
      (Identifier)))+}
{-(Assignment
    (Identifier)
    (Hash
      (Context
        (Comment)
        (KeyValue
          (Identifier)
          (Identifier)))
      (KeyValue
        (Identifier)
        (Identifier))))-})