You will be given a definition of a task first, then some input of the task.
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

But in a press release on June 20 , 2007 , UNESCO said again that it has no link with the " private initiative " .
Output:
However , the United Nations Educational , Scientific and Cultural Organization ( UNESCO ) , in a press release on June 20 , 2007 , reaffirmed that it has no link with the " private initiative " .