Definition: In this task, you are given a text of the article. Your task is to generate a headline (title) for this article.
Input: australia 's agl energy said thursday it had made a preliminary merger approach to origin energy , paving the way for a ## billion dollar -lrb- ##.# billion us -rrb- deal that would create the country 's largest gas and electricity supplier .

australia 's agl and origin in merger talks UNK UNK closing shares