Pandoc
  Meta { unMeta = fromList [] }
  [ Para
      [ Str "This is a text with "
      , Span
          ( ""
          , [ "insertion" ]
          , [ ( "author" , "eng-dept" )
            , ( "date" , "2014-06-25T10:40:00Z" )
            ]
          )
          [ Str "two exciting" ]
      , Str " insertions."
      ]
  ]